Deuteronomy 29:12-15

You are standing here in order to enter into a covenant with the LORD your God, a covenant the LORD is making with you this day and sealing with an oath, to confirm you this day as his people, that he may be your God as he promised you and as he swore to your fathers, Abraham, Isaac and Jacob. I am making this covenant, with its oath, not only with you who are standing here with us today in the presence of the LORD our God but also with those who are not here today.