Deuteronomy 29:12-15

MKJV(i) 12 so that you should enter into covenant with Jehovah your God, and into His oath, which Jehovah your God makes you today; 13 that He may establish you today for a people to Himself, and that He may be a God to you, as He has said to you, and as He has sworn to your fathers, to Abraham, to Isaac, and to Jacob. 14 Nor do I make this covenant and this oath with you only, 15 but with him who stands here with us today before Jehovah our God, and also with him that is not here with us today.