John the Apostle
John 12:40BSB·traditional attribution

“He has blinded their eyes and hardened their hearts, so that they cannot see with their eyes, and understand with their hearts, and turn, and I would heal them.”

John Calvin Reformed @genevareformer

40. He hath blinded their eyes, and hardened their heart. The passage is taken from Isaiah 6:9, where the Lord forewarns the prophet, that the labor which he spends in instructing will lead to no other result than to make the people worse.

Matthew Henry Presbyterian @wholebiblehenry

We have here the honour done to our Lord Jesus by the Old Testament prophets, who foretold and lamented the infidelity of the many that believed not on him. It was indeed a dishonour and grief to Christ that his doctrine met with so little acceptance and so much opposition; but this takes off the wonder and reproach, makes the offence of it to cease...

Commenting on John 12:37-41

John Gill Reformed Baptist @doctorgill

These things said Esaias,.... Concerning the blinding and hardening of the Jews: when he saw his glory, and spake of him; when he saw, in a visionary way, the glory of the Messiah in the temple, and the angels covering their faces with their wings at the sight of him; and when he spake of him as the King, the Lord of hosts, whom he...