Leviticus 19:18

“Thou shalt not avenge, etc.] That is, not avenge ourselves on him that has done us an ill thing, but leave it to him to whom vengeance belongs, (see <451219>Romans 12:19); which is done when a man does an ill thing for another, or denies to grant a favour which he has been denied by another; Jarchi thus illustrates it, one says to him (his neighbour) lend me thy sickle; he answers, no (I will not); on the morrow (the neighbour comes, who had refused, and) says to him, lend me thy hatchet; he replies, I will not lend thee, even as thou wouldest not lend me; this is vengeance: this was reckoned mean and little, a piece of weakness with the very Heathens f672: nor bear any grudge against the…”

“thou shalt love thy neighbour as thyself--The word "neighbour" is used as synonymous with "fellow creature." The Israelites in a later age restricted its meaning as applicable only to their own countrymen. This narrow interpretation was refuted by our Lord in a beautiful parable (Luk 10:30-37).”

“Thy neighbour - Every man, as plainly appears, By comparing this place with Lev 19:34, where this law is applied to strangers. Because the word neighbour is explained by another man, Lev 20:10; Rom 13:8. As thyself - With the same sincerity, though not equality of affection. Leviticus 19:19”

“19:18 love your neighbor as yourself: This is the cornerstone for biblical ethics in both the Old Testament and the New Testament (see Matt 22:39; Mark 12:31; Luke 10:27; Rom 13:8-9; Gal 5:14; Jas 2:8). It includes foreigners (Lev 19:34; cp. Luke 10:30-37). Conversely, hate leads to a grudge that can bear violent fruit (see 1 Jn 2:10-11; 4:20).”

“not avenge: Exo 23:4, Exo 23:5; Deu 32:25; Sa2 13:22, Sa2 13:28; Pro 20:22; Mat 5:43, Mat 5:44; Rom 12:17, Rom 12:19, Rom 13:4; Gal 5:20; Eph 4:31; Col 3:8; Pe1 2:1 thou shalt: Mat 5:43, Mat 19:19, Mat 22:39, Mat 22:40; Mar 12:31-34; Luk 10:27-37; Rom 13:9; Gal 5:14; Jam 2:8 Leviticus 19:19”