Eusebius of Caesarea

This prophecy says that the one who is begotten after the God and Lord of all things, meaning the Word of God, will come into Egypt, and not undercover or invisibly or without a body but riding on a light cloud, or better "on thick light." This is the meaning of the Hebrew word. Let the Hebrew children tell us when after the time of Isaiah the Lord visited Egypt, and which Lord it was. The God over all is one. Let them tell us how he is said to ride on "thick light" and to come to any particular place on the earth. Let them interpret "thick light" and explain why the Lord is not said to visit Egypt without it. Let them also say when the prophecy that the Egyptian idols made with hands would be shaken and Egyptians would fight Egyptians by the coming of the Lord is to have been fulfilled.