1 John 3:7

“Little children, let no man deceive you, &c.] Neither by these doctrines, nor by wicked practices, drawing into the belief of the one, or into the performance of the other; suggesting, as the Gnostics did, that knowledge without practice was enough, and that it was no matter how a man lived, provided his notions of the Gospel were right: he that doeth righteousness, is righteous; not that any man is made righteous by the works of the law, or by his obedience to the law of works, for this is contrary to the express word of God; and besides, the best righteousness of man is imperfect, and can never constitute or denominate him righteous before God; and was he justified by it; it would not only…”

“The same truth stated, with the addition that he who sins is, so far as he sins, "of the devil." let no man deceive you--as Antinomians try to mislead men. righteousness--Greek, "the righteousness," namely, of Christ or God. he that doeth . . . is righteous--Not his doing makes him righteous, but his being righteous (justified by the righteousness of God in Christ, Rom 10:3-10) makes him to do righteousness: an inversion common in familiar language, logical in reality, though not in form, as in Luk 7:47; Joh 8:47. Works do not justify, but the justified man works. We infer from his doing righteousness that he is already righteous (that is, has the true and only principle of doing…”

“Little children - Notes at 1 John 2:1. Let no man deceive you - That is, in the matter under consideration; to wit, by persuading you that a man may live in sinful practices, and yet be a true child of God. From this it is clear that the apostle supposed there were some who would attempt to do this, and it was to counteract their arts that he made these positive statements in regard to the nature of true religion. He that doeth righteousness is righteous - This is laid down as a great and undeniable principle in religion - a maxim which none could dispute, and as important as it is plain. And it is worthy of all the emphasis which the apostle lays on it. The man who does righteousness, or…”

“Let no one deceive you - Let none persuade you that any man is righteous but he that uniformly practises righteousness; he alone is righteous, after the example of his Lord. 1 John 3:8”

“let: Jo1 2:26, Jo1 2:29; Rom 2:13; Co1 6:9; Gal 6:7, Gal 6:8; Eph 5:6; Jam 1:22, Jam 2:19, Jam 5:1-3 he that: Psa 106:3; Eze 18:5-9; Mat 5:20; Luk 1:75; Act 10:35; Rom 2:6-8, Rom 2:13; Rom 6:16-18; Eph 5:9; Phi 1:11; Pe1 2:24 even: Jo1 3:3, Jo1 2:1; Psa 45:7, Psa 72:1-7; Heb 1:8, Heb 7:2; Pe1 1:15, Pe1 1:16 1 John 3:8”