Charles Spurgeon Commentary Exodus 10:1-2

"And Jehovah said unto Moses, Go in unto Pharaoh: for I have hardened his heart, and the heart of his servants, that I may show these my signs in the midst of them, and that thou mayest tell in the ears of thy son, and of thy son`s son, what things I have wrought upon Egypt, and my signs which I have done among them; that ye may know that I am Jehovah." — Exodus 10:1-2 (ASV)

God would stamp the early history of Israel with the deep impression of his Godhead. His overthrow of the proud Egyptian king should let Israel know in the very beginning how great a God had chosen her to be his own special portion.