Isaiah adds a personal plea to the specific prophecy. He testifies that he does indeed follow Yahweh by using a strong contrasting image of Yahweh hiding from Judah while Isaiah seeks him. Of course, Yahweh is not hiding. Judah does not find him because Judah refuses to look. Isaiah looked and has found him, as evidenced in his mission and the signs from Yahweh represented in his children. This verse is a clear reference to the dual “child” prophecies, Immanuel and Maher-shalal-hash-baz.