Isaiah 19:19

19:19 At that time there will be an altar for the Lord in the middle of the land of Egypt, as well as a sacred pillar dedicated to the Lord at its border.

Isaiah 19:21

19:21 The Lord will reveal himself to the Egyptians, and they will acknowledge the Lord’s authority at that time. They will present sacrifices and offerings; they will make vows to the Lord and fulfill them.