7 Bible Verses about Penalties For Serving Other Gods

and the curse, if ye shall not hearken unto the commandments of Jehovah your God, but turn aside out of the way which I command you this day, to go after other gods, which ye have not known.

If there be found in the midst of thee, within any of thy gates which Jehovah thy God giveth thee, man or woman, that doeth that which is evil in the sight of Jehovah thy God, in transgressing his covenant, and hath gone and served other gods, and worshipped them, or the sun, or the moon, or any of the host of heaven, which I have not commanded; and it be told thee, and thou hast heard of it, then shalt thou inquire diligently; and, behold, if it be true, and the thing certain, that such abomination is wrought in Israel,read more.
then shalt thou bring forth that man or that woman, who hath done this evil thing, unto thy gates, even the man or the woman; and thou shalt stone them to death with stones. At the mouth of two witnesses, or three witnesses, shall he that is to die be put to death; at the mouth of one witness he shall not be put to death. The hand of the witnesses shall be first upon him to put him to death, and afterward the hand of all the people. So thou shalt put away the evil from the midst of thee.

He that sacrificeth unto any god, save unto Jehovah only, shall be utterly destroyed.

But if thy heart turn away, and thou wilt not hear, but shalt be drawn away, and worship other gods, and serve them;

if ye oppress not the sojourner, the fatherless, and the widow, and shed not innocent blood in this place, neither walk after other gods to your own hurt:

They shall not dwell in thy land, lest they make thee sin against me; for if thou serve their gods, it will surely be a snare unto thee.

But the prophet, that shall speak a word presumptuously in my name, which I have not commanded him to speak, or that shall speak in the name of other gods, that same prophet shall die.