Isaiah 27:12-13

12And it shall come to pass in that day That the Lord will thresh, From the channel of the River to the Brook of Egypt; And you will be gathered one by one, O you children of Israel.

13So it shall be in that day: The great trumpet will be blown; They will come, who are about to perish in the land of Assyria, And they who are outcasts in the land of Egypt, And shall worship the Lord in the holy mount at Jerusalem.