Deuteronomy 20:18

20:18 so that they cannot teach you all the abhorrent ways they worship ¹  their gods, causing you to sin against the Lord your God.

Deuteronomy 31:12

31:12 Gather the people – men, women, and children, as well as the resident foreigners in your villages – so they may hear and thus learn about and fear the Lord your God and carefully obey all the words of this law.

[20:18]  ¹ tn Heb “to do according to all their abominations which they do for their gods.”