They disagreed among themselves and began to leave after Paul had made this final statement: “The Holy Spirit was right when He spoke to your fathers through Isaiah the prophet: ‘Go to this people and say, “You will be ever hearing but never understanding; you will be ever seeing but never perceiving.” For this people’s heart has grown callous; they hardly hear with their ears, and they have closed their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn, and I would heal them.’
And He replied: "Go and tell this people, 'Be ever hearing, but never understanding; be ever seeing, but never perceiving.' Make the hearts of this people calloused; deafen their ears and close their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn and be healed."
Walk the Square · a single-voice walk of this pair around the Clowney square8:58
Significance
Paul's final recorded words to the Jews of Rome are Isaiah's hardening commission: "You will be ever hearing but never understanding; you will be ever seeing but never perceiving... Otherwise they might see with their eyes... and turn, and I would heal them" (Acts 28:26-27, quoting Isaiah 6:9-10). Isaiah received this word at his own commissioning, when the vision of the LORD's holiness was followed by a charge to preach to a people whose hearts would grow dull — judgment worked through the very preaching of the word. Paul applies it as the closing verdict on Israel's unbelief and the warrant for the gospel's turn to the Gentiles: "God's salvation has been sent to the Gentiles, and they will listen!" (Acts 28:28). Yet the citation is not a word of final despair but of God's sovereign purpose — the same hardening Isaiah served preserved a remnant, and Paul insists elsewhere that Israel's hardening is only partial and lasts only until the full number of the Gentiles has come in (Romans 11:25). Christ himself made this text the key to his parables (Matthew 13:14-15); in him the seeing that leads to healing is given to all who turn, and the veil over the reading of the prophets is lifted for those who behold him (2 Corinthians 3:14-16).
NT Use Pattern: Ironic / Inverted — Paul's final word to the Jews of Rome — Isaiah 6's hardening commission reapplied as the closing verdict on unbelieving Israel, the same reverse-rhetorical move Jesus and the gospels deploy.
