And Exodus 14:4, "And I will harden Pharaoh's heart, that he shall follow after them; and I will be honoured upon Pharaoh, and upon all his host; that the Egyptians may know that I am the Lord."
Msgr. Pope could write an interesting piece about the phrase “... know that I am the LORD.” It’s found in many contexts, including in Ezekiel’s “dry bones” passage.