Deuteronomy 13:6-8

⁶If your brother, the son of your mother, or your son, or your daughter, or the wife of your bosom, or your friend, who is as your own soul, entice you secretly, saying, Let us go and serve other gods, which you have not known, you, nor your fathers; ⁷of the gods of the peoples who are round about you, near to you, or far off from you, from the one end of the earth even to the other end of the earth; ⁸you shall not consent to him, nor listen to him; neither shall your eye pity him, neither shall you spare, neither shall you conceal him: