Jesaja 8:18

His home was the future, and to this he was subservient, even with all his house. "Behold, I and the children which Jehovah hath given me for signs and types in Israel, from Jehovah of hosts, who dwelleth upon Mount Zion." He presents himself to the Lord with his children, puts himself and them into His hands. They were Jehovah's gift, and that for a higher purpose than every-day family enjoyment. They subserved the purpose of signs and types in connection with the history of salvation. "Signs and types:" 'oth (sign) was an omen or prognostic (σημεῖον) in word and deed, which pointed to and was the pledge of something future (whether it were in itself miraculous or natural); mopheth was either something miraculous (τέρας) pointing back to a supernatural cause, or a type (τύπος, prodigium = porridigium) which pointed beyond itself to something future and concealed, literally twisted round, i.e., out of the ordinary course, paradoxical, striking, standing out (Arab. aft, ift, res mira, δεινόν τι), from אפת (related to הפך, אבך) = מאפת, like מוסר = מאסר. His children were signs and enigmatical symbols of the future, and that from Jehovah of hosts who dwelt on Zion. In accordance with His counsel (to which the עם in מעם points), He had selected these signs and types: He who could bring to pass the future, which they set forth, as surely as He was Jehovah of hosts, and who would bring it to pass as surely as He had chosen Mount Zion for the scene of His gracious presence upon earth. Shear-yashub and Mahershalal were indeed no less symbols of future wrath than of future grace; but the name of the father (Yesha'hâhu) was an assurance that all the future would issue from Jehovah's salvation, and end in the same. Isaiah and his children were figures and emblems of redemptio…

This chapter, and the four next that follow it (to chap. 13) are all one continued discourse or sermon, the scope of which is to show the great destruction that should now shortly be brought upon the kingdom of Israel, and the great disturbance that should be given to the kingdom of Judah by the king of Assyria, and that both were for their sins; but rich provision is made of comfort for those that feared God in those dark times, referring especially to the days of the Messiah. In this chapter we have, I. A prophecy of the destruction of the confederate kingdoms of Syria and Israel by the king of Assyria (Isa 8:1-4). II. Of the desolations that should be made by that proud victorious prince in the land of Israel and Judah (Isa 8:5-8). III. Great encouragement given to the people of God in the midst of those distractions; they are assured, 1. That the enemies shall not gain their point against them (Isa 8:9, Isa 8:10). 2. That if they kept up the fear of God, and kept down the fear of man, they should find God their refuge (Isa 8:11-14), and while others stumbled, and fell into despair, they should be enabled to wait on God, and should see themselves reserved for better times (Isa 8:15-18). Lastly, He gives a necessary caution to all, at their peril, not to consult with familiar spirits, for they would thereby throw themselves into despair, but to keep close to the word of God (Isa 8:19-22). And these counsels and these comforts will still be of use to us in time of trouble.

8:18 I and the children the Lord has given me (see the application to Jesus Christ in Heb 2:13): The names of the prophet Isaiah and his children carried significance as signs and warnings. Shear-jashub (a remnant will return; 7:3) was a sign of God’s faithfulness to Judah. Maher-shalal-hash-baz (swift to plunder and quick to carry away) signified the destruction of Damascus and Samaria (8:1-4) and the desolation of faithless Judah (8:5-8). The name of Isaiah (Yahweh is salvation) itself signifies that salvation is from the Lord alone. These three names also represent major themes in the book: the remnant, the desolation of Judah, and salvation. Immanuel (God is with us) embodies all of these themes, along with the idea that Judah would be protected if only it would trust in the Lord.