What manner of love ( ποταπην αγαπην ). Qualitative interrogative as in 2Pe 3:11; Mt 8:27. Only here in John's writings. Originally of what country or race.

Hath bestowed ( δεδωκεν ). Perfect active indicative of  διδωμ, state of completion, "the endowment of the receiver" (Vincent).

That we should be called ( ινα κληθωμεν ). Sub-final use of  ινα with the first aorist passive subjunctive of  καλεω, to call or name, as in Mt 2:23.

Children ( τεκνα ). As in Joh 1:12 and with an allusion to  γεγεννητα in 2:29 in an effort "to restore the waning enthusiasm of his readers, and to recall them to their first love" (Brooke).

And such we are ( κα εσμεν ). "And we are." A parenthetical reflection characteristic of John ( κα νυν εστιν in Joh 5:25 and  κα ουκ εισιν in Re 2:2; 3:9) omitted by Textus Receptus, though, in the old MSS.

Because it knew him not ( οτ ουκ εγνω αυτον ). Second aorist active indicative of  γινωσκω, precisely the argument in Joh 15:18f.

Now ( νυν ). Without waiting for the  παρουσια or second coming. We have a present dignity and duty, though there is greater glory to come.

It is not yet made manifest ( ουπω εφανερωθη ). First aorist passive indicative of  φανεροω. For the aorist indicative with  ουπω with a future outlook Brooke notes Mr 11:2; 1Co 8:2; Heb 12:4; Re 17:10,12.

What we shall be ( τ εσομεθα ). Not  τινες (who), but  τ (what) neuter singular predicate nominative. "This what suggests something unspeakable, contained in the likeness of God" (Bengel).

If he shall be manifested ( εαν φανερωθη ). As in 2:28, which see. The subject may be Christ as in verse 9, or the future manifestation just mentioned. Either makes sense, probably "it" here better than "he."

Like him ( ομοιο αυτω ).  Αυτω is associative instrumental case after  ομοιο. This is our destiny and glory (Ro 8:29), to be like Jesus who is like God (2Co 4:6).

We shall see him even as he is ( οψομεθα αυτον καθως εστιν ). Future middle indicative of  οραω. The transforming power of this vision of Christ (1Co 13:12) is the consummation of the glorious process begun at the new birth (2Co 3:18).

Set on him ( επ' αυτω ). Resting upon ( επ ) with locative rather than  εις, looking to, Ac 24:15. That is upon Christ (Brooke), upon God (D. Smith), upon God in Christ (Westcott).

Purifieth himself ( αγνιζε εαυτον ). Present active indicative of  αγνιζω, old verb, from  αγνος (pure from contamination), used of ceremonial purifications (Joh 11:55; Ac 21:24,26 as in Ex 19:10) and then of personal internal cleansing of heart (Jas 4:8), soul (1Pe 1:22), self (here). Cf. Php 2:12f. the work of both God and man.

As he is pure ( καθως εκεινος αγνος εστιν ). As in 2:6; 3:9  εκεινος (emphatic demonstrative) refers to Christ. Christ can be termed  αγνος "in virtue of the perfection of his humanity" (Westcott). Our destiny is to be conformed to the image of God in Christ (Ro 8:29).

Sin is lawlessness ( η αμαρτια εστιν η ανομια ). The article with both subject and predicate makes them coextensive and so interchangeable. Doing sin is the converse of doing righteousness (2:29). The present active participle ( ποιων ) means the habit of doing sin.

He ( εκεινος ). As in verse 3; Joh 1:18.

Was manifested ( εφανερωθη ). Same form as in verse 2, but here of the Incarnation as in Joh 21:1, not of the second coming (1Jo 2:28).

To take away sins ( ινα τας αμαρτιας αρη ). Purpose clause with  ινα and first aorist active subjunctive of  αιρω as in Joh 1:29. In Isa 53:11 we have  αναφερω for bearing sins, but  αιρω properly means to lift up and carry away (Joh 2:16). So in Heb 10:4 we find  αφαιρεω and Heb 10:11  περιαιρεω, to take away sins completely (the complete expiation wrought by Christ on Calvary). The plural  αμαρτιας here, as in Col 1:14, not singular (collective sense)  αμαρτιαν as in Joh 1:29.

And in him is no sin ( κα αμαρτια εν αυτω ουκ εστιν ). "And sin (the sinful principle) in him is not." As Jesus had claimed about himself (Joh 7:18; 8:46) and as is repeatedly stated in the N.T. (2Co 5:21; Heb 4:15; 7:26; 9:13).

Sinneth not ( ουχ αμαρτανε ). Linear present (linear  μενων, keeps on abiding) active indicative of  αμαρτανω, "does not keep on sinning." For  μενω (abide) see 2:6; Joh 15:4-10.

Whosoever sinneth ( ο αμαρτανων ). Present (linear) active articular participle like  μενων above, "the one who keeps on sinning" (lives a life of sin, not mere occasional acts of sin as  αμαρτησας, aorist active participle, would mean).

Hath not seen him ( ουχ εωρακεν αυτον ). Perfect active indicative of  οραω. The habit of sin is proof that one has not the vision or the knowledge ( εγνωκεν, perfect active also) of Christ. He means, of course, spiritual vision and spiritual knowledge, not the literal sense of  οραω in Joh 1:18; 20:29.

Let no man lead you astray ( μηδεις πλανατω υμας ). Present active imperative of  πλαναω, "let no one keep on leading you astray." See 1:8; 2:26. Break the spell of any Gnostic charmer.

He that doeth righteousness ( ο ποιων την δικαιοσυνην ). "He that keeps on doing (present active participle of  ποιεω ) righteousness." For this idiom with  ποιεω see 1:6; 3:4.

He ( εκεινος ). Christ as in verse 5.

He that doeth sin ( ο ποιων την αμαρτιαν ). "He that keeps on doing sin" (the habit of sin).

Of the devil ( εκ του διαβολου ). In spiritual parentage as Jesus said of the Pharisees in Joh 8:44. When one acts like the devil he shows that he is not a true child of God.

Sinneth from the beginning ( απ' αρχης αμαρτανε ). Linear progressive present active indicative, "he has been sinning from the beginning" of his career as the devil. This is his normal life and those who imitate him become his spiritual children.

That he might destroy ( ινα λυση ). Purpose clause with  ινα and the first aorist active subjunctive of  λυω. This purpose ( εις τουτο ) Jesus had and has. There is eternal conflict, with final victory over Satan certain.

Doeth no sin ( αμαρτιαν ου ποιε ). Linear present active indicative as in verse 4 like  αμαρτανε in verse 8. The child of God does not have the habit of sin.

His seed ( σπερμα αυτου ). God's seed, "the divine principle of life" (Vincent). Cf. Joh 1.

And he cannot sin ( κα ου δυνατα αμαρτανειν ). This is a wrong translation, for this English naturally means "and he cannot commit sin" as if it were  κα ου δυνατα αμαρτειν or  αμαρτησα (second aorist or first aorist active infinitive). The present active infinitive  αμαρτανειν can only mean "and he cannot go on sinning," as is true of  αμαρτανε in verse 8 and  αμαρτανων in verse 6. For the aorist subjunctive to commit a sin see  αμαρτητε and  αμαρτη in 2:1. A great deal of false theology has grown out of a misunderstanding of the tense of  αμαρτανειν here. Paul has precisely John's idea in Ro 6:1  επιμενωμεν τη αμαρτια (shall we continue in sin, present active linear subjunctive) in contrast with  αμαρτησωμεν in Ro 6:15 (shall we commit a sin, first aorist active subjunctive).

In this ( εν τουτω ). As already shown. A life of sin is proof that one is a child of the devil and not of God. This is the line of cleavage that is obvious to all. See Joh 8:33-39 for the claim of the Pharisees to be the children of Abraham, whereas their conduct showed them to be children of the devil. This is not a popular note with an age that wishes to remove all distinctions between Christians and the world.

Doeth not righteousness ( ο μη ποιων δικαιοσυνην ). Habit (linear present participle) again of not doing righteousness, as in verse 7 of doing it. Cf.  ποιε and  μη ποιων (doing and not doing) in Mt 7:24,26.

Neither ( κα ). Literally, "and," but with the ellipsis of  ουκ εστιν εκ του θεου (is not of God). The addition here of this one item about not loving ( μη αγαπων ) one's brother is like Paul's summary in Ro 13:9, a striking illustration of the general principle just laid down and in accord with 2:9-11.

Message ( αγγελια ). In N.T. only here and 1:5, but  επαγγελια (promise) fifty-one times.

From the beginning ( απ' αρχης ). See 1:1 for this phrase and 2:7 for the idea. They had the message of love for the brotherhood from the beginning of the gospel and it goes back to the time of Cain and Abel (verse 12).

That we should love one another ( ινα αγαπωμεν αλληλους ). Sub-final clause (content of the  αγγελια ) with  ινα and present active subjunctive. John repeats the message of 2:7f.

Of the evil one ( εκ του πονηρου ). Ablative case and the same for neuter and masculine singular, but verse 10 makes it clear that the reference is to the devil.

Slew ( εσφαξεν ). First aorist active indicative of  σφαζω, old verb, to slay, to butcher, to cut the throat (Latin jugulare) like an ox in the shambles, in N.T. only here and Rev. (Re 5:6,9,12, etc.).

Wherefore? ( χαριν τινοσ; ). "For the sake of what?" Post-positive preposition (Eph 3:1,14) except here. The interpretation of the act of Cain (Ge 4:8ff.) is an addition to the narrative, but in accord with Heb 11:4. Jealousy led to murder.

If ( ε ). Common construction after  θαυμαζω (wonder) rather than  οτ (that, because). Present imperative here with  μη means "cease wondering." Note  μη θαυμασηις (do not begin to wonder) in Joh 3:6 (an individual case). See this same condition and language in Joh 15:18.

We know ( ημεις οιδαμεν ). Emphatic expression of  ημεις (we) in contrast to the unregenerate world, the Christian consciousness shared by writer and readers.

We have passed ( μεταβεβηκαμεν ). Perfect active indicative of  μεταβαινω, old compound to pass over from one place to another (Joh 7:3), to migrate, out of death into life. We have already done it while here on earth.

Because ( οτ ). Proof of this transition, not the ground of it.

We love the brethren ( αγαπωμεν τους αδελφους ). Just this phrase (plural) here alone, but see 2:9 for the singular.

He that loveth not ( ο μη αγαπων ). "The not loving man," general picture and picture of spiritual death.

A murderer ( ανθρωποκτονος ). Old compound (Euripides) from  ανθρωπος (man) and  κτεινω (to kill), a man-killer, in N.T. only here and Joh 8:44 (of Satan).

No ( πασ--ου ). According to current Hebraistic idiom=  ουδεις as in 2:19,21.

Abiding ( μενουσαν ). Present active feminine accusative predicate participle of  μενω, "a continuous power and a communicated gift" (Westcott).

Know we ( εγνωκαμεν ). Perfect active indicative, "we have come to know and still know." See 2:3 for "hereby" ( εν τουτω ).

Love ( την αγαπην ). "The thing called love" (D. Smith).

He for us ( εκεινος υπερ ημων ).  Εκεινος as in 2:6; 3:3,5,  υπερ here alone in this Epistle, though common in John's Gospel (10:11,15; 11:50, etc.) and in 3Jo 1:7.

Laid down his life ( την ψυχην αυτου εθηκεν ). First aorist active indicative of  τιθημ, the very idiom used by Jesus of himself in Joh 10:11,17f.

We ought ( ημεις οφειλομεν ). Emphatic  ημεις again. For  οφειλω see 2:6. Of course our laying down our lives for the brethren has no atoning value in our cases as in that of Christ, but is a supreme proof of one's love (Joh 13:37f.; 15:13), as often happens.

Whoso hath ( ος αν εχη ). Indefinite relative clause with modal  αν with  ος and the present active subjunctive of  εχω.

The world's goods ( τον βιον του κοσμου ). "The living or livelihood (not  ζωη, the principle of life, and see 2:16 for  βιος ) of the world" (not in the sense of evil or wicked, but simply this mundane sphere).

Beholdeth ( θεωρε ). Present active subjunctive of  θεωρεω, like  εχε just before.

In need ( χρειαν εχοντα ). "Having need" (present active predicate participle of  εχω, agreeing with  αδελφον ). See the vivid picture of a like case in Jas 2:15f.

Shutteth up ( κλειση ). First aorist (effective) active subjunctive of  κλειω, to close like the door, changed on purpose from present tense to aorist (graphic slamming the door of his compassion,  σπλαγχνα, common in LXX and N.T. for the nobler viscera, the seat of the emotions, as in Php 2:11; Col 3:12). Only here in John.

How ( πως ). Rhetorical question like that in Jas 2:16 (what is the use?). It is practical, not speculative, that counts in the hour of need.

In word, neither with the tongue ( λογω μηδε τη γλωσση ). Either instrumental or locative makes sense. What John means is "not merely by word or by the tongue." He does not condemn kind words which are comforting and cheering, but warm words should be accompanied by warm deeds to make real "in deed and in truth" ( εν εργω κα αληθεια ). Here is a case where actions do speak louder than mere words.

Shall we know ( γνωσομεθα ). Future middle indicative of  γινωσκω, at any future emergency, we shall come to know by this ( εν τουτω ) "that we are of the truth" ( οτ εκ της αληθειας εσμεν ).

Before him ( εμπροσθεν αυτου ). In the very presence of God we shall have confident assurance ( πεισομεν την καρδιαν ημων, either we shall persuade our heart or shall assure our heart) because God understands us.

Whereinsoever our heart condemn us ( οτ εαν καταγινωσκη ημων η καρδια ). A construction like  οτ αν, whatever, in Joh 2:5; 14:13.  Καταγινωσκω occurs only three times in the N.T., here, verse 21; Ga 2:11. It means to know something against one, to condemn.

Because God is greater than our heart ( οτ μειζων εστιν της καρδιας ημων ). Ablative  καρδιας after the comparative  μειζων.

And knoweth all things ( κα γινωσκε παντα ). Just so Peter replied to Jesus in spite of his denials (Joh 21:17). God's omniscience is linked with his love and sympathy. God knows every secret in our hearts. This difficult passage strikes the very centre of Christian truth (Brooke).

If our heart condemn us not ( εαν η καρδια μη καταγινωσκη ). Condition of third class with  εαν μη and present active subjunctive. The converse of the preceding, but not a claim to sinlessness, but the consciousness of fellowship in God's presence.

Boldness toward God ( παρρησιαν προς τον θεον ). Even in prayer (Heb 4:16). See also 2:28.

Whatsoever we ask ( ο εαν αιτωμεν ). Indefinite relative clause with modal  αν and the present active subjunctive, like  οτ εαν καταγινωσκη in verse 20. In form no limitations are placed here save that of complete fellowship with God, which means complete surrender of our will to that of God our Father. See the clear teaching of Jesus on this subject in Mr 11:24; Lu 11:9; Joh 14:12f.; 16:23 and his example (Mr 14:36; Mt 26:39; Lu 22:42). The answer may not always be in the form that we expect, but it will be better.

We receive of him ( λαμβανομεν απ' αυτου ). See 1:5 for  απ' αυτου (from him).

Because ( οτ ). Twofold reason why we receive regularly ( λαμβανομεν ) the answer to our prayers (1) "we keep" ( τηρουμεν, for which see 2:3) his commandments and (2) "we do" ( ποιουμεν, we practise regularly) "the things that are pleasing" ( τα αρεστα, old verbal adjective from  αρεσκω, to please, with dative in Joh 8:29 with same phrase; Ac 12:3 and infinitive in Ac 6:2, only other N.T. examples) "in his sight" ( ενωπιον αυτου, common late vernacular preposition in papyri, LXX, and in N.T., except Matthew and Mark, chiefly by Luke and in the Apocalypse), in God's eye, as in Heb 13:21.

His commandment ( η εντολη αυτου ).

That ( ινα ). Subfinal use of  ινα in apposition with  εντολη (commandment) and explanatory of it, as in Joh 15:12 ( εντολη ινα ). See Christ's summary of the commandments (Mr 12:28-31; Mt 22:34-40). So these two points here (1)

We should believe ( πιστευσωμεν, first aorist active subjunctive according to B K L, though Aleph A C read the present subjunctive  πιστευωμεν ) either in a crisis (aorist) or the continuous tenor (present) of our lives. The "name" of Jesus Christ here stands for all that he is, "a compressed creed " (Westcott) as in 1:3. Note dative  ονοματ here with  πιστευω as in 5:10, though  εις ονομα (on the name) in 5:13; Joh 1:12; 2:23; 3:18. But (2) we should love one another" ( αγαπωμεν αλληλους ), as he has already urged (2:7f.; 3:11) and as he will repeat (4:7,11f.; 2Jo 1:5) as Jesus (even as he gave us commandment, that is Christ) had previously done (Joh 13:34; 15:12,17). There are frequent points of contact between this Epistle and the words of Jesus in Joh 13-17.

And he in him ( κα αυτος εν αυτω ). That is "God abides in him" as in 4:15. We abide in God and God abides in us through the Holy Spirit (Joh 14:10,17,23; 17:21). "Therefore let God be a home to thee, and be thou the home of God: abide in God, and let God abide in thee" (Bede).

By the Spirit ( εκ του πνευματος ). It is thus (by the Holy Spirit, first mention in this Epistle and "Holy" not used with "Spirit" in this Epistle or the Apocalypse) that we know that God abides in us.

Which ( ου ). Ablative case by attraction from accusative  ο (object of  εδωκεν ) to agree with  πνευματος as often, though not always. It is a pity that the grammatical gender (which) is retained here in the English instead of "whom," as it should be.