Psalms 69:23 - Joseph Benson’s Commentary on the Old and New Testaments

Let their eyes, &c. Their eyes shall be darkened Not the eyes of their bodies, (for, in that sense, the prediction was neither accomplished in David's nor in Christ's enemies,) but of their minds, that they will not discern God's truth, nor their own duty, nor the way of peace and salvation. As they shut their eyes and will not see, so they shall be judicially blinded. This was most solemnly threatened, or rather foretold, Isaiah 6:9-12, and most awfully fulfilled: see the margin. “They who loved darkness rather than light,” says Dr. Horne, “were permitted by the righteous judgment of God to go on in darkness, while the blind led the blind. And such still continues to be the state of the Jews, notwithstanding that intolerable weight of wo which made their loins to shake, and bowed down their backs to the earth. The veil remaineth yet upon their hearts, in the reading of the Old Testament, nor can they see therein the things which belong to their peace.”