John 12:37-41

Though he had done so many miracles before them So that they could not but see them; yet they believed not on him That is, in general they did not; being hardened in their infidelity. That the saying of Esaias might Or rather, So that the saying of Esaias was, fulfilled, as Dr. Doddridge renders the clause, observing, “It is apparent that the accomplishment of this prophecy could not be the end they proposed to themselves in their unbelief; and consequently that the expression, ινα πληρωθη, must be rendered as above.” Thus also Dr. Macknight, who observes, that ινα here, as well as in many other passages, ought to be translated so that, as denoting the event spoken of, and not the cause of that event. Which he spake In the name of Christ and his servants, referring expressly to gospel times; Lord, who hath believed our report? The tidings we bring, the testimony which we bear, especially concerning the great and wonderful humiliation and exaltation of the Messiah, predicted by that prophet in the passage referred to, namely, Isaiah 53:1, &c., where see the notes. And to whom hath the arm of the Lord been revealed? To whom has his power been manifested, so as to conquer those strong prejudices which men have entertained against the appointed method of salvation, or to save whom has it been exerted? Observe, reader, the power of God is only exerted to save those who believe the gospel report. Therefore, they could not believe They were now in a manner utterly incapable of believing, because, by the just judgment of God for their obstinacy and wilful resistance of the truth, they were, at length, so left to the hardness of their hearts, that neither the miracles nor the doctrines of our Lord could make any impression upon them. Because Esaias said again, He hath blinded their eyes, &c. As God is said to harden the heart of Pharaoh in one place, while in another it is said, Pharaoh hardened his own heart; (see Exodus 8:15; Exodus 8:32; Exodus 9:12;) and as we ought to be very tender of ascribing to God any thing that looks like a necessitating influence to impel men to sin, “I apprehend,” says Dr. Doddridge, “that all we are here to understand, by God's blinding and hardening these Jews, is, that he permitted them to grow more and more prejudiced against the gospel,” namely, by withdrawing from them his abused grace. Now these things said Esaias when he saw his glory Namely, Christ's glory. See notes on Isaiah 6:1, &c., where the glory which Isaiah saw is expressly said to be the glory of Jehovah, the supreme God. The meaning is, that Esaias uttered these remarkable words, when, in a vision, he saw the glory of the Son of God, and the manifestations which he was to make of the divine counsels, and described the effect which those manifestations would have upon his hearers, for which reason they are a prophetical description of the men of the age in which Jesus lived.