And thou say in thine heart,.... These words are in connection with the former part of the Deuteronomy 8:14:
and thou forget the Lord thy God; the author and giver of all the good things enjoyed, and think within themselves, though they might not express it in words at length:
my power and the might of mine hand hath gotten me this wealth; so ascribing that to themselves, their labour, and diligence, which ought to be ascribed to the bounty and blessing of God; see Hosea 12:8.