Isaiah 19:19, 21

In that day there will be an altar to the LORD in the midst of the land of Egypt, and a memorial stone to the LORD near its border.

And so the LORD will make Himself known to Egypt, and the Egyptians will know [heed, honor, and cherish] the LORD in that day. They will even worship with sacrifices [of animals] and offerings [of produce]; they will make a vow to the LORD and fulfill it.