Isaiah 19:19-22

19In that day there will be an altar to the Lord in the midst of the land of Egypt, and a pillar to the Lord at its border.

20And it will be for a sign and for a witness to the Lord of hosts in the land of Egypt; for they will cry to the Lord because of the oppressors, and He will send them a Savior and a Mighty One, and He will deliver them.

21Then the Lord will be known to Egypt, and the Egyptians will know the Lord in that day, and will make sacrifice and offering; yes, they will make a vow to the Lord and perform it.

22And the Lord will strike Egypt, He will strike and heal it; they will return to the Lord, and He will be entreated by them and heal them.