Reply to Faustus the Manichaean

² Augustine replied: You often speak in your discourses of two gods, as indeed you acknowledge, though at first you denied it. And you give as a reason for thus speaking the words of the apostle: "The god of this world has blinded the minds of them that believe not." Most of us punctuate this sentence differently, and explain it as meaning that the true God has blinded the minds of unbelievers. They put a stop after the word God, and read the following words together.

Or without this punctuation you may, for the sake of exposition, change the order of the words, and read, "In whom God has blinded the minds of unbelievers of this world," which gives the same sense. The act of blinding the minds of unbelievers may in one sense be ascribed to God, as the effect not of malice, but of justice. Thus Paul himself says elsewhere, "Is God unjust, who takes vengeance?" and again, "What shall we say then? Is there unrighteousness with God? God forbid.

For Moses says, I will have mercy on whom I will have mercy, and will have compassion on whom I will have compassion." Observe what he adds, after asserting the undeniable truth that there is no unrighteousness with God: "But what if God, willing to show His wrath, and to make His power known, endured with much long-suffering the vessels of wrath fitted for destruction, and that He might manifest the riches of His grace towards the vessels of mercy, which He has before prepared unto glory?" etc.

Here it evidently cannot be said that it is one God who shows his wrath, and makes known his power in the vessels of wrath fitted for destruction, and another God who shows his riches in the vessels of mercy. According to the apostle's doctrine, it is one and the same God who does both. Hence he says again, "For this cause God gave them up to the lusts of their own heart, to uncleanness, to dishonor their own bodies between themselves;" and immediately after, "For this cause God gave them up unto vile affections;" and again, "And even as they did not like to retain God in their knowledge, God gave them over to a reprobate mind." Here we see how the true and just God blinds the minds of unbelievers.

For in all these words quoted from the apostle no other God is understood than He whose Son, sent by Him, came saying, "For judgment am I come into this world, that they which see not might see, and that they which see might be made blind." Here, again, it is plain to the minds of believers how God blinds the minds of unbelievers. For among the secret things, which contain the righteous principles of God's judgment, there is a secret which determines that the minds of some shall be blinded, and the minds of some enlightened.

Regarding this, it is well said of God, "Your judgments are a great deep." The apostle, in admiration of the unfathomable depth of this abyss, exclaims: "O the depth of the riches both of the wisdom and of the knowledge of God! How unsearchable are His judgments, and His ways past finding out!"