Exodus 32:27

27And he said to them, “Thus says the Lord God of Israel, ‘Put your sword on your side each of you, and go to and fro from gate to gate throughout the camp, and each of you akill his brother and his companion and his neighbor.’”

Deuteronomy 13:6-11

6 bIf your brother, the son of your mother, or your son or your daughter or cthe wife you embrace
Hebrew  the wife of your bosom
or your friend ewho is as your own soul entices you secretly, saying, ‘Let us go and serve other gods,’ fwhich neither you nor your fathers have known,
7some gof the gods of the peoples who are around you, whether near you or far off from you, from the one end of the earth to the other, 8you shall hnot yield to him or listen to him, nor ishall your eye pity him, nor shall you spare him, nor shall you conceal him. 9But you shall kill him. jYour hand shall be first against him to put him to death, and afterward the hand of all the people. 10 kYou shall stone him to death with stones, because he sought to draw you away from the Lord your God, who brought you out of the land of Egypt, out of the house of slavery. 11And lall Israel shall hear and fear and never again do any such wickedness as this among you.

Ezekiel 9:5-7

5And to mthe others he said in my hearing, “Pass through the city after him, and strike. nYour eye shall not spare, and you shall show no pity. 6 oKill old men outright, young men and maidens, little children and women, but ptouch no one on whom is the mark. And qbegin at my sanctuary.” So they began with the elders who were before the house. 7Then he said to them, rDefile the house, and fill the courts with the slain. Go out.” So they went out and struck in the city.
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