Isaiah 19:21, 23

So the LORD will show himself to the Egyptians, and then they will know he is the LORD. They will worship God and offer many sacrifices. They will make promises to the LORD and will keep them.

At that time there will be a highway from Egypt to Assyria, and the Assyrians will go to Egypt, and the Egyptians will go to Assyria. The Egyptians and Assyrians will worship God together.