v1-2: The calling of God is irrevocable (Rom 11.29). Israel remained "my servant...whom I have chosen." We cannot doubt the God who made these promises. Today, "do not be afraid," and tomorrow, "I will help you."
v3-4: Floods on the dry ground, like rivers in the desert, as in 43.19. The barren will be made fruitful, 1 Sam 2.4-5. The image of the desert is the nation itself, which will be refreshed by God (Acts 3.19).
The references are to "your offspring...your descendants," Jewish people, as in Joel 2.28-29, where the Spirit will be poured out on the people. The coming of the Messiah is accompanied by the in-flowing of His Spirit.
v5: Again, references to the Jewish people, as they are restored in their relationship to God.
v6-8: The uniqueness of God, there is "no other Rock" (43.10-11); since He is utterly faithful and dependable, we need not fear. The existence of one God gives no room for another.
The prophet presents challenges, as in 41.21-24. The implied silence in response is a further testimony that God is who He says He is.
v9: Idolatry is useless; the people made a graven image, but were ignorant that to do so is sin, so they failed to repent. Those who trust in idols are described as "nothing," 40.17; 41.24.
v10: The root of idolatry, "Who shapes a god?" A man makes something apparently greater than himself to worship, see v17. But it cannot profit him; such is the folly of idolatry.
v11: The day will come when they realise their folly, and are brought together for judgment.
v12-17: Idols made of metal and wood. Today we consider ourselves more sophisticated, more civilised; yet there are many who claim the name of Christ, yet have created a god in their own image. Ps 106.28 suggests that the idolater joins him/herself to the spirit behind the idol (see also 1 Cor 10.21). Isaiah shows the folly of using the same piece of wood to make an idol, and to burn on the fire - can they not see the folly and futility of their actions, v19.
Idolatry, of whatever form, 'corrupts value systems, thought processes, and regard for human life' (Emeka Nwankpa, church leader from Nigeria and Ghana).
An insight here into the work of a carpenter, who grows his own trees, before cutting them down, v14.
v18: The effect of idolatry, indeed any false religion; it blinds the mind. They do not know nor understand;
- Eph 4.17-18; the futility of their mind;
- their understanding is darkened;
- the ignorance that is in them;
- 2 Cor 4.4; whose minds the god of this world has blinded.
v19: They do not see the reality of the situation; "Shall I bow down to a block of wood?" puts the case against idolatry very well.
v20: The idolater is deceived, he cannot deliver his soul; he fails to see that his religion is a lie.
v21-23: Back to God's promises, as the prophet rejoices in what God has done for His people. Even though Israel had been guilty of idolatry, God's promises remained true; further their sins were blotted out. God's people rejoice, for 'the Lord has done it.' Without detailing any argument, the all-powerful and true God is contrasted with the useless idols.
God's blessings on Israel to be declared throughout creation, Rom 11.12.
v24-28: God needs no help from man; "I am the Lord...alone...by myself." See 63.5; Acts 17.25. By Himself He created all things; by Himself, He frustrated the schemes of the false prophets; and by Himself He would restore Jerusalem and Judah to their land. The glorious might of God is here used to bless His people. He brings it into the near future for Isaiah, in reference to the Persian King, Cyrus. He chose Cyrus for this purpose, as His servant; see chapter 45.