And that thou mayest tell in the ears of thy son, and of thy son's son,.... Not of his sons and grandsons only; for Moses here, as Aben Ezra observes, was in the stead of Israel; and the sense is, that it should be told to their posterity in all succeeding ages:
what things I have wrought in Egypt; the plagues that he inflicted on the Egyptians:
and my signs which I have done amongst them; meaning the same things which were signs:
that ye may know how that I am the Lord; that their God is the true Jehovah, and the one only living and true God; the Lord God omnipotent, omniscient, omnipresent, infinite, and eternal.