Isaiah 19:19-21 Living Bible (TLB)
19 And there will be an altar to the Lord in the heart of Egypt in those days and a monument to the Lord at its border. 20 This will be for a sign of loyalty to the Lord Almighty; then when they cry to the Lord for help against those who oppress them, he will send them a savior—and he shall deliver them.
21 In that day the Lord will make himself known to the Egyptians. Yes, they will know the Lord and give their sacrifices and offerings to him; they will make promises to God and keep them.