Isaiah 43:8 - Meaning and Application

God here challenges the worshipers of idols to prove that their false gods are truly divine. He points to one clear example, the rescue of the Jews from Babylon, and says that even this alone should be enough to show that the God of Israel is the true and living God, and that there is no other.

The supporters of idolatry are called to step forward and speak in defense of their idols (Isaiah 43:8, Isaiah 43:9). Their gods have eyes but cannot see, and ears but cannot hear, and those who make them and trust in them become like them, as David said before (Psalm 115:8). The prophet is calling idolaters blind people who have eyes and deaf people who have ears. They have human shape and human abilities, but in truth they lack sense and reason, or they would never worship gods they made themselves. So let all the nations gather together, help one another, and make their best case for their worthless gods. If they have nothing to say to defend them, then let them hear what the God of Israel says to expose and condemn them.

God’s own witnesses are then summoned to speak for him (Isaiah 43:10). “You, Israel, all who are called by my name, you are my witnesses, says the Lord, and so is my servant whom I have chosen.” This includes all the prophets who testified about Christ, and Christ himself, the great prophet and servant chosen by God (Isaiah 42:1). God’s people are his witnesses because they know from experience his power, his kindness, his care, and the truth of his promises. They will gladly testify that he is gracious and that none of his words has ever failed. In a special way, the prophets are his witnesses because they were given knowledge of his secrets. Above all, the Messiah bears witness to him, because he came from the Father and has made him known.

The point these witnesses are called to prove is clear: “You are my witnesses, says the Lord, and I am God” (Isaiah 43:12). Those who already confess that the Lord is God should be ready to tell others what they know about him, so that others may come to know it too. “I believed, and therefore I spoke.” Since they know, believe, and understand, they should testify that he alone is God, the only true God, the one to fear, worship, and trust. Before time began, before the first day of creation, “I am he” (Isaiah 43:13). The idols are only recent inventions, gods that came into being yesterday (Deuteronomy 32:17). But the God of Israel is from everlasting. There was no god formed before him, and none will come after him.

This also means that he alone is the Lord, the great Jehovah, the eternal One who is, who was, and who is to come. Besides him there is no Savior (Isaiah 43:11). Notice what God takes glory in. He does not mainly boast that he is the only ruler, but that he is the only Savior. He delights to do good. He is the Savior of all men (1 Timothy 4:10).

The Lord’s true Godhood is proved in two ways. First, he has perfect and unfailing knowledge, shown by the predictions of his word (Isaiah 43:12). He says, in effect, “I have declared and shown what has always come to pass exactly as I said. I have never spoken or shown anything that failed.” He did this when there was no strange god among them, meaning when they were not pretending to consult any other oracle or prophet. As it was said when Israel came out of Egypt, the Lord alone led them, and there was no foreign god with him.

Second, he has unlimited and unstoppable power, shown by the works of his providence. He says not only, “I have shown,” but also, “I have saved.” He not only foretells what no one else can know, but he does what no one else can do. No one can rescue from his hand those whom he chooses to punish, not human power and not any of the gods of the nations (Isaiah 43:13). It is a fearful thing to fall into the hands of the living God, because no one can escape from them. He will carry out what he has planned, in mercy and in judgment, and no one can block or delay it.

The gods of the nations, who compete with him, are not just lesser than he is. They are not gods at all (Isaiah 43:9). This is shown by a challenge: who among them can declare what God now declares? Who can foretell the future? Who can even explain former things, as in Isaiah 41:22? They cannot even inspire a true historian, much less a prophet. They are told to bring their witnesses and prove that they know all things and can do all things. If they could prove it, then they would be justified, along with the idolaters who honor them. But if they cannot prove it, let them admit the truth and acknowledge the one true God. God’s cause is never afraid of a fair trial. Those who cannot defend their false religion should yield to the truth and submit to true religion.