Deuteronomy 29:15

12 That thou shouldest enter into covenant with the LORD thy God, and into his oath, which the LORD thy God maketh with thee this day:

13 That he may establish thee to day for a people unto himself, and that he may be unto thee a God, as he hath said unto thee, and as he hath sworn unto thy fathers, to Abraham, to Isaac, and to Jacob.

14 Neither with you only do I make this covenant and this oath;

15 But with him that standeth here with us this day before the LORD our God, and also with him that is not here with us this day:

16 (For ye know how we have dwelt in the land of Egypt; and how we came through the nations which ye passed by;

17 And ye have seen their abominations, and their idols, wood and stone, silver and gold, which were among them:)

18 Lest there should be among you man, or woman, or family, or tribe, whose heart turneth away this day from the LORD our God, to go and serve the gods of these nations; lest there should be among you a root that beareth gall and wormwood;