With him that is not here with us - i. e. as the Jews explain, posterity; which throughout all generations was to be taken as bound by the act and deed of those present and living.
Related Commentaries of Deuteronomy 29:15
Deuteronomy 29:15
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: