John 13:34
34. a new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another—This was the new feature of it. Christ's love to His people in giving His life a ransom for them was altogether new, and consequently as a Model and Standard for theirs to one another. It is not, however, something transcending the great moral law, which is "the old commandment" (1Jo 2:7, and see on Mr 12:28-33), but that law in a new and peculiar form. Hence it is said to be both new and old (1Jo 2:7, 8).
1 Timothy 1:5
5. But—in contrast to the doctrine of the false teachers.
the end—the aim. the commandment—Greek, "of the charge" which you ought to urge on your flock. Referring to the same Greek word as in 1Ti 1:3, 18; here, however, in a larger sense, as including the Gospel "dispensation of God" (see on 1Ti 1:4; 1Ti 1:11), which was the sum and substance of the "charge" committed to Timothy wherewith he should "charge" his flock. charity—LOVE; the sum and end of the law and of the Gospel alike, and that wherein the Gospel is the fulfilment of the spirit of the law in its every essential jot and tittle (Ro 13:10). The foundation is faith (1Ti 1:4), the "end" is love (1Ti 1:14; Tit 3:15). out of—springing as from a fountain. pure heart—a heart purified by faith (Ac 15:9; 2Ti 2:22; Tit 1:15). good conscience—a conscience cleared from guilt by the effect of sound faith in Christ (1Ti 1:19; 1Ti 3:9; 2Ti 1:3; 1Pe 3:21). Contrast 1Ti 4:2; Tit 1:15; compare Ac 23:1. John uses "heart," where Paul would use "conscience." In Paul the understanding is the seat of conscience; the heart is the seat of love [BENGEL]. A good conscience is joined with sound faith; a bad conscience with unsoundness in the faith (compare Heb 9:14). faith unfeigned—not a hypocritical, dead, and unfruitful faith, but faith working by love (Ga 5:6). The false teachers drew men off from such a loving, working, real faith, to profitless, speculative "questions" (1Ti 1:4) and jangling (1Ti 1:6).2 Peter 2:21
21. the way of righteousness—"the way of truth" (2Pe 2:2). Christian doctrine, and "the knowledge of the Lord and Saviour."
turn—back again; so the Greek. from the holy commandment—the Gospel which enjoins holiness; in opposition to their corruption. "Holy," not that it makes holy, but because it ought to be kept inviolate [TITTMANN]. delivered—once for all; admitting no turning back.2 Peter 3:2
2. prophets—of the Old Testament.
of us—The oldest manuscripts and Vulgate read, "And of the commandment of the Lord and Saviour (declared) by YOUR apostles" (so "apostle of the Gentiles," Ro 11:13) —the apostles who live among you in the present time, in contrast to the Old Testament "prophets."