The Divine Way of Wisdom, and Greatness, and Might. God's Hiding of Himself, and Subsequent Revelation. To Marcion's God Such a Concealment and Manifestation Impossible. God's Predestination. No Such Prior System of Intention Possible to a God Previously Unknown as Was Marcion's. The Powers of the World Which Crucified Christ. St. Paul, as a Wise Master-Builder, Associated with Prophecy. Sundry Injunctions of the Apostle Parallel with the Teaching of the Old Testament
By all these statements, therefore, does he show us what God he means, when he says, “We speak the wisdom of God among them that are perfect.” It is that God who has confounded the wisdom of the wise, who has brought to nought the understanding of the prudent, who has reduced to folly the world's wisdom, by choosing its foolish things, and disposing them to the attainment of salvation. This wisdom, he says, once lay hidden in things that were foolish, weak, and lacking in honour; once also was latent under figures, allegories, and enigmatical types; but it was afterwards to be revealed in Christ, who was set “as a light to the Gentiles,” by the Creator who promised through the mouth of Isaiah that He would discover “the hidden treasures, which eye had not seen.” Now, that that god should have ever hidden anything who had never made a cover wherein to practise concealment, is in itself a wholly incredible idea.
If he existed, concealment of himself was out of the question— to say nothing of any of his religious ordinances. The Creator, on the contrary, was as well known in Himself as His ordinances were. These, we know, were publicly instituted in Israel; but they lay overshadowed with latent meanings, in which the wisdom of God was concealed, to be brought to light by and by among “the perfect,” when the time should come, but “pre-ordained in the counsels of God before the ages.” But whose ages, if not the Creator's?
For because ages consist of times, and times are made up of days, and months, and years; since also days, and months, and years are measured by suns, and moons, and stars, which He ordained for this purpose (for “they shall be,” says He, “for signs of the months and the years”), it clearly follows that the ages belong to the Creator, and that nothing of what was fore-ordained before the ages can be said to be the property of any other being than Him who claims the ages also as His own.
Else let Marcion show that the ages belong to his god. He must then also claim the world itself for him; for it is in it that the ages are reckoned, the vessel as it were of the times, as well as the signs thereof, or their order. But he has no such demonstration to show us. I go back therefore to the point, and ask him this question: Why did (his god) fore-ordain our glory before the ages of the Creator? I could understand his having predetermined it before the ages, if he had revealed it at the commencement of time. But when he does this almost at the very expiration of all the ages of the Creator, his predestination before the ages, and not rather within the ages, was in vain, because he did not mean to make any revelation of his purpose until the ages had almost run out their course.
For it is wholly inconsistent in him to be so forward in planning purposes, who is so backward in revealing them.
Source: Against Marcion (New Advent)