Augustine of Hippo

For conversion itself is likewise a gift of His grace, as when it is said to Him, "Turn us, O God of Hosts." Or may it be that we are to understand this also as actually taking place through the merciful experience of the divine method of healing, [namely this,] that, being of proud and perverse wills, and wishing to establish their own righteousness, they were left alone for the very purpose of being blinded; and thus blinded in order that they might stumble on the stone of stumbling, and have their faces filled with shame; and so, …

Tractates on the Gospel of John, Tractate 53 ↗