1 John 3:15

“Whosoever hateth his brother is a murderer, &c.] A soul murderer, as the Ethiopic version renders it; not only of himself, for every sinner, by sinning, wrongs and destroys his own soul; but of his brother whom he hates: he is a murderer of him in his heart, even as he that lusts after a woman hath committed adultery with her in his heart, out of which arise murders, as well as adulteries; it is not only taking away life, but also causeless anger, malice, and hatred, that is a breach of the sixth command; (see <400521>Matthew 5:21,22,28 15:19); and ye know that no murderer hath eternal life abiding in him; he has not the grace of life, or the beginning of eternal life in him; he has no…”

“hateth--equivalent to "loveth not" (Jo1 3:14); there is no medium between the two. "Love and hatred, like light and darkness, life and death, necessarily replace, as well as necessarily exclude, one another" [ALFORD]. is a murderer--because indulging in that passion, which, if followed out to its natural consequences, would make him one. "Whereas, Jo1 3:16 desires us to lay down our lives for the brethren; duels require one (awful to say!) to risk his own life, rather than not deprive another of life" [BENGEL]. God regards the inward disposition as tantamount to the outward act which would flow from it. Whomsoever one hates, one wishes to be dead. hath--Such a one still "abideth in death."…”

“Whosoever hateth his brother is a murderer ... - That is, he has the spirit of a murderer; he has that which, if it were acted out, would lead him to commit murder, as it did Cain. The private malice, the secret grudge, the envy which is cherished in the heart, is murderous in its tendency, and were it not for the outward restraints of human laws, and the dread of punishment, it would often lead to the act of murder. The apostle does not say that he who hates his brother, though he does not in fact commit murder, is guilty to the same degree as if he had actually done it; but he evidently means to say that the spirit which would lead to murder is there, and that God will hold him responsible…”

“He, I say, abideth in spiritual death, is void of the life of God. For whosoever hateth his brother, and there is no medium between loving and hating him, is, in God's account, a murderer: every degree of hatred being a degree of the same temper which moved Cain to murder his brother. And no murderer hath eternal life abiding in him - But every loving believer hath. For love is the beginning of eternal life. It is the same, in substance, with glory. 1 John 3:16”

“hateth: Gen 27:41; Lev 19:16-18; Sa2 13:22-28; Pro 26:24-26; Mat 5:21, Mat 5:22, Mat 5:28; Mar 6:19; Act 23:12, Act 23:14; Jam 1:15, Jam 4:1, Jam 4:2 hath: Joh 4:14; Gal 5:21; Pe1 1:23; Rev 21:8 1 John 3:16”