7 Bible Verses about Penalties For Serving Other Gods

And the curse if you do not give ear to the orders of the Lord your God, but let yourselves be turned from the way which I have put before you this day, and go after other gods which are not yours.

If there is any man or woman among you, in any of the towns which the Lord your God gives you, who does evil in the eyes of the Lord your God, sinning against his agreement, By becoming a servant of other gods and worshipping them or the sun or the moon or all the stars of heaven, against my orders; If word of this comes to your ears, then let this thing be looked into with care, and if there is no doubt that it is true, and such evil has been done in Israel;read more.
Then you are to take the man or woman who has done the evil to the public place of your town, and they are to be stoned with stones till they are dead. On the word of two or three witnesses, a man may be given the punishment of death; but he is not to be put to death on the word of one witness. The hands of the witnesses will be the first to put him to death, and after them the hands of all the people. So you are to put away the evil from among you.

Complete destruction will come on any man who makes offerings to any other god but the Lord.

But if your heart is turned away and your ear is shut, and you go after those who would make you servants and worshippers of other gods:

If you are not cruel to the man from a strange country, and to the child without a father, and to the widow, and do not put the upright to death in this place, or go after other gods, causing damage to yourselves:

Let them not go on living in your land, or they will make you do evil against me: for if you give worship to their gods, it will certainly be a cause of sin to you.

But the prophet who takes it on himself to say words in my name which I have not given him orders to say, or who says anything in the name of other gods, will come to his death.