Jesaja 43:27

But Israel has no such works; on the contrary, its history has been a string of sins from the very first. "Thy first forefather sinned, and thy mediators have fallen away from me." By the first forefather, Hitzig, Umbreit, and Knobel understand Adam; but Adam was the forefather of the human race, not of Israel; and the debt of Adam was the debt of mankind, and not of Israel. The reference is to Abraham, as the first of the three from whom the origin and election of Israel were dated; Abraham, whom Israel from the very first had called with pride "our father" (Mat 3:9). Even the history of Abraham was stained with sin, and did not shine in the light of meritorious works, but in that of grace, and of faith laying hold of grace. The melı̄tsı̄m, interpreters, and mediators generally (Ch2 32:31; Job 33:23), are the prophets and priests, who stood between Jehovah and Israel, and were the medium of intercourse between the two, both in word and deed. They also had for the most part become unfaithful to God, by resorting to ungodly soothsaying and false worship. Hence the sin of Israel was as old as its very earliest origin; and apostasy had spread even among those who ought to have been the best and most godly, because of the office they sustained.

The contents of this chapter are much the same with those of the foregoing chapter, looking at the release of the Jews out of their captivity, but looking through that, and beyond that, to the great work of man's redemption by Jesus Christ, and the grace of the gospel, which through him believers partake of. Here are, I. Precious promises made to God's people in their affliction, of his presence with them, for their support under it, and their deliverance out of it (Isa 43:1-7). II. A challenge to idols to vie with the omniscience and omnipotence of God (Isa 43:8-13). III. Encouragement given to the people of God to hope for their deliverance out of Babylon, from the consideration of what God did for their fathers when he brought them out of Egypt (Isa 43:14-21). IV. A method taken to prepare the people for their deliverance, by putting them in mind of their sins, by which they had provoked God to send them into captivity and continue them there, that they might repent and seek to God for pardoning mercy (Isa 43:22-28).

43:27 leaders: God held Israel’s and Judah’s kings especially responsible for leading the nation into sin (see 2 Kgs 21).