20 “If a man strikes his servant or his maid with a rod, and he dies under his hand, the man shall surely be punished.
Exodus 21:20 Cross References - WEB
Genesis 4:15
15 Yahweh said to him, “Therefore whoever slays Cain, vengeance will be taken on him sevenfold.” Yahweh appointed a sign for Cain, so that anyone finding him would not strike him.
Genesis 4:24
24 If Cain will be avenged seven times, truly Lamech seventy-seven times.”
Genesis 9:6
6 Whoever sheds man’s blood, his blood will be shed by man, for God made man in his own image.
Exodus 21:26-27
Numbers 35:19
19 The avenger of blood shall himself put the murderer to death. When he meets him, he shall put him to death.
Numbers 35:30-33
30 “‘Whoever kills any person, the murderer shall be slain based on the testimony of witnesses; but one witness shall not testify alone against any person so that he dies.
31 “‘Moreover you shall take no ransom for the life of a murderer who is guilty of death. He shall surely be put to death.
32 “‘You shall take no ransom for him who has fled to his city of refuge, that he may come again to dwell in the land before the death of the priest.
33 “‘So you shall not pollute the land where you live; for blood pollutes the land. No atonement can be made for the land, for the blood that is shed in it, but by the blood of him who shed it.
Deuteronomy 19:21
21 Your eyes shall not pity: life for life, eye for eye, tooth for tooth, hand for hand, foot for foot.
Proverbs 29:19
19 A servant can’t be corrected by words. Though he understands, yet he will not respond.
Isaiah 58:3-4
3 ‘Why have we fasted,’ they say, ‘and you don’t see? Why have we afflicted our soul, and you don’t notice?’ “Behold, in the day of your fast you find pleasure, and oppress all your laborers.
4 Behold, you fast for strife and contention, and to strike with the fist of wickedness. You don’t fast today so as to make your voice to be heard on high.
Romans 13:4
4 for he is a servant of God to you for good. But if you do that which is evil, be afraid, for he doesn’t bear the sword in vain; for he is a servant of God, an avenger for wrath to him who does evil.