John 6:45
45. written in the prophets—in Isa 54:13; Jer 31:33, 34; other similar passages may also have been in view. Our Lord thus falls back upon Scripture authority for this seemingly hard saying.
all taught of God—not by external revelation merely, but by internal illumination, corresponding to the "drawing" of Joh 6:44. Every man therefore, &c.—that is, who hath been thus efficaciously taught of Him. cometh unto me—with absolute certainty, yet in the sense above given of "drawing"; that is, "As none can come to Me but as divinely drawn, so none thus drawn shall fail to come."1 Corinthians 2:10
10. revealed . . . by . . . Spirit—The inspiration of thoughts (so far as truth essential to salvation is concerned) makes the Christian (1Co 3:16; 12:3; Mt 16:17; Joh 16:13; 1Jo 2:20, 27); that of words, the PROPHET (2Sa 23:1, 2; 1Ki 13:1, 5), "by the word of the Lord" (1Co 2:13; Joh 20:30, 31; 2Pe 1:21). The secrets of revelation are secret to some, not because those who know them will not reveal them (for indeed, the very notion of revelation implies an unveiling of what had been veiled), but because those to whom they are announced have not the will or power to comprehend them. Hence the Spirit-taught alone know these secrets (Ps 25:14; Pr 3:32; Joh 7:17; 15:15).
unto us—the "perfect" or fully matured in Christian experience (1Co 2:6). Intelligent men may understand the outline of doctrines; but without the Holy Spirit's revelation to the heart, these will be to them a mere outline—a skeleton, correct perhaps, but wanting life [WHATLEY, Cautions for the Times, 14], (Lu 10:21). the Spirit searcheth—working in us and with our spirits (compare Ro 8:16, 26, 27). The Old Testament shows us God (the Father) for us. The Gospels, God (the Son) with us. The Acts and Epistles, God (the Holy Ghost) in us [MONOD], (Ga 3:14). deep things of God— (Ps 92:5). His divine nature, attributes, and counsels. The Spirit delights to explore the infinite depths of His own divine mind, and then reveal them to us, according as we are capable of understanding them (De 29:29). This proves the personality and Godhead of the Holy Ghost. Godhead cannot be separated from the Spirit of God, as manhood cannot be separated from the Spirit of man [BENGEL].1 John 2:20
20. But—Greek, "And." He here states the means which they as believers have wherewith to withstand. Antichrists (1Jo 2:18), namely, the chrism (so the Greek: a play upon similar sounds), or "anointing unguent," namely, the Holy Spirit (more plainly mentioned further on, as in John's style, 1Jo 3:24; 4:13; 5:6), which they ("ye" is emphatical in contrast to those apostates, 1Jo 2:19) have "from the Holy One, Christ" (Joh 1:33; 3:34; 15:26; 16:14): "the righteous" (1Jo 2:1), "pure" (1Jo 3:3), "the Holy One" (Ac 3:14) "of God"; Mr 1:24. Those anointed of God in Christ alone can resist those anointed with the spirit of Satan, Antichrists, who would sever them from the Father and from the Son. Believers have the anointing Spirit from the Father also, as well as from the Son; even as the Son is anointed therewith by the Father. Hence the Spirit is the token that we are in the Father and in the Son; without it a man is none of Christ. The material unguent of costliest ingredients, poured on the head of priests and kings, typified this spiritual unguent, derived from Christ, the Head, to us, His members. We can have no share in Him as Jesus, except we become truly Christians, and so be in Him as Christ, anointed with that unction from the Holy One. The Spirit poured on Christ, the Head, is by Him diffused through all the members. "It appears that we all are the body of Christ, because we all are anointed: and we all in Him are both Christ's and Christ, because in some measure the whole Christ is Head and body."
and—therefore. ye know all things—needful for acting aright against Antichrist's seductions, and for Christian life and godliness. In the same measure as one hath the Spirit, in that measure (no more and no less) he knows all these things.