Exodus 22:20

'He who is sacrificing to a god, save to Jehovah alone, is devoted.

Deuteronomy 17:2-5

'When there is found in thy midst, in one of thy cities which Jehovah thy God is giving to thee, a man or a woman who doth the evil thing in the eyes of Jehovah thy God by transgressing His covenant,

Numbers 25:7-8

and Phinehas, son of Eleazar, son of Aaron, the priest, seeth, and riseth from the midst of the company, and taketh a javelin in his hand,

Deuteronomy 13:1-15

'When there ariseth in your midst a prophet, or a dreamer of a dream, and he hath given unto thee a sign or wonder,

Deuteronomy 18:20

Only, the prophet who presumeth to speak a word in My name -- that which I have not commanded him to speak -- and who speaketh in the name of other gods -- even that prophet hath died.

Numbers 21:3

and Jehovah hearkeneth to the voice of Israel, and giveth up the Canaanite, and he devoteth them and their cities, and calleth the name of the place Hormah.

Numbers 25:2-4

and they call for the people to the sacrifices of their gods, and the people eat, and bow themselves to their gods,

Joshua 23:15-16

'And it hath been, as there hath come upon you all the good thing which Jehovah your God hath spoken unto you, so doth Jehovah bring upon you the whole of the evil thing, till His destroying you from off this good ground which Jehovah your God hath given to you;

Treasury of Scripture Knowledge

Summary

He that sacrificeth unto any god, save unto the LORD only, he shall be utterly destroyed.

Bible References

Sacrificeth

Numbers 25:2
and they call for the people to the sacrifices of their gods, and the people eat, and bow themselves to their gods,
Deuteronomy 13:1
'When there ariseth in your midst a prophet, or a dreamer of a dream, and he hath given unto thee a sign or wonder,
Deuteronomy 17:2
'When there is found in thy midst, in one of thy cities which Jehovah thy God is giving to thee, a man or a woman who doth the evil thing in the eyes of Jehovah thy God by transgressing His covenant,
Deuteronomy 18:20
Only, the prophet who presumeth to speak a word in My name -- that which I have not commanded him to speak -- and who speaketh in the name of other gods -- even that prophet hath died.

Utterly

Numbers 21:3
and Jehovah hearkeneth to the voice of Israel, and giveth up the Canaanite, and he devoteth them and their cities, and calleth the name of the place Hormah.
Joshua 23:15
'And it hath been, as there hath come upon you all the good thing which Jehovah your God hath spoken unto you, so doth Jehovah bring upon you the whole of the evil thing, till His destroying you from off this good ground which Jehovah your God hath given to you;