Augustine of Hippo
What do we perceive as we anticipate what lies ahead? What recognition does gazing upon God bring? What does He acknowledge? Consider this: All have turned aside, together they have become worthless; there is none who acts righteously, not even one. Is this not another way of expressing the question I just posed? If no one performs goodness, then there remains no one to lament among the unrighteous. Yet, the Lord advises patience; do not rush to judgment. He has granted humanity the ability to do good, but only through Him, for apart from Him, they are wicked; they are the offspring of Adam when they engage in wrongdoing, but when they act justly, they are My children.
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For this reason, God transforms the sons of men into the sons of God, just as He created the Son of Man from the Son of God. Observe the nature of this union: we are granted the promise of sharing in the divine nature; if He who made the promise does not first partake in our mortality, then He would be deceitful. The Son of God embraced human mortality so that mortal beings might partake in the divine nature. He who assured you of His goodness first shared in your wrongdoing; He who offers you divinity expresses love within you. Therefore, setting aside the notion that men are the children of God, it remains true that they are the children of Adam: there is none who acts righteously, not even one.