¹⁹ On 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.^{(A) 20} It will be a sign and a witness to the Lord of hosts in the land of Egypt; when they cry to the Lord because of oppressors, he will send them a savior and will defend and deliver them.^{(B) 21} The Lord will make himself known to the Egyptians, and the Egyptians will know the Lord on that day and will serve with sacrifice and offerings, and they will make vows to the Lord and perform them.^{(C) 22} The Lord will strike Egypt, striking but healing, so that they will return to the Lord, and he will listen to their supplications and heal them.^(D)