Deuteronomy 12:30

30 take heed to thyself that thou seek not to follow them after they are destroyed before thee, saying, How do these nations act towards their gods? I will do likewise.

Deuteronomy 12:30 Meaning and Commentary

Deuteronomy 12:30

Take heed to thyself, that thou be not snared by following
them
Their examples and customs, and so be drawn into the same idolatrous practices; see ( Psalms 106:35 Psalms 106:36 ) , after that they be destroyed from before thee; for their idolatries and other sins:

and that thou inquire not after their gods;
what they were, their names, forms, and figures:

saying, how did these nations serve their gods?
what was the manner of worship they gave them? what rites, customs, and ceremonies did they use in their adoration of them?

even so will I do likewise;
or however, if this was not determined on when the inquiries were made, there was danger that this would be the result of them, and therefore the caution is given.

Deuteronomy 12:30 In-Context

28 Beware and hearken, and thou shalt do all the commands which I charge thee, that it may be well with thee and with thy sons for ever, if thou shalt do that which is pleasing and good before the Lord thy God.
29 And if the Lord thy God shall utterly destroy the nations, to whom thou goest in thither to inherit their land, from before thee, and thou shalt inherit it, and dwell in their land;
30 take heed to thyself that thou seek not to follow them after they are destroyed before thee, saying, How do these nations act towards their gods? I will do likewise.
31 Thou shalt not do so to thy God; for they have sacrificed to their gods the abominations of the Lord which he hates, for they burn their sons and their daughters in fire to their gods.
32 Every word that I command you this day, it shalt thou observe to do: thou shalt not add to it, nor diminish from it.

The Brenton translation of the Septuagint is in the public domain.