Deuteronomy 12:31-32

King James Version

³¹ Thou shalt not do so unto the Lord thy God: for every abomination to the Lord, which he hateth, have they done unto their gods; for even their sons and their daughters they have burnt in the fire to their gods.

³² What thing soever I command you, observe to do it: thou shalt not add thereto, nor diminish from it.