Isaiah 7:16-20

For before the child will know enough to refuse evil and choose good, the land (Canaan) whose two kings you dread will be deserted [both Ephraim and Aram]. [Is 7:2] The LORD will bring on you, on your people, and on your father’s house such days as have not come since the day that Ephraim (the ten northern tribes) separated from Judah—[He will call for] the king of Assyria.” In that day the LORD will whistle for the fly that is in the mouth of the rivers and canals of Egypt and for the bee that is in the land of Assyria. These [armies, like flies and bees] will all come and settle on the steep and rugged ravines and in the clefts of the rocks, and on all the thorn bushes and in all the watering places. In that day [when foreign armies swarm the land] the Lord will shave with a razor, hired from the regions beyond the Euphrates (that is, with the king of Assyria), [that razor will shave] the head and the hair of the legs; and it will also remove the beard [leaving Judah stripped, shamed and scorned]. [2 Kin 16:7, 8; 18:13-16]