Deuteronomy 29:15

12 that you may enter into the covenant of Yahweh your God, and into his oath, which Yahweh your God makes with you this day;

13 that he may establish you this day to himself for a people, and that he may be to you a God, as he spoke to you, and as he swore to your 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 who stands here with us this day before Yahweh our God, and also with him who is not here with us this day

16 (for you know how we lived in the land of Egypt, and how we came through the midst of the nations through which you passed;

17 and you 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 turns away this day from Yahweh our God, to go to serve the gods of those nations; lest there should be among you a root that bears gall and wormwood;