Isaiah 19:21 WEB

¹⁹  In that day shall there be an altar to Yahweh in the midst of the land of Egypt, and a pillar at the border of it to Yahweh.

²⁰  It shall be for a sign and for a witness to Yahweh of Hosts in the land of Egypt; for they shall cry to Yahweh because of oppressors, and he will send them a savior, and a defender, and he will deliver them.

²¹  Yahweh shall be known to Egypt, and the Egyptians shall know Yahweh in that day; yes, they shall worship with sacrifice and offering, and shall vow a vow to Yahweh, and shall perform it.

²²  Yahweh will strike Egypt, smiting and healing; and they shall return to Yahweh, and he will be entreated of them, and will heal them.

²³  In that day shall there be a highway out of Egypt to Assyria, and the Assyrian shall come into Egypt, and the Egyptian into Assyria; and the Egyptians shall worship with the Assyrians.