Paul has made a powerful statement that "Mankind is guilty before God in chapter one." He's posited that God has revealed himself and we have rejected him.

Step by step, God continues to reveal himself and continues to present the gospel through the prophets and his word and the scriptures and the testimony of the saints. And yet, there is this tendency for us to push beyond the barrier and the boundaries of his love. And because of that, he says he gave mankind over to the next level of sin, and when they pushed those boundaries, he pushed them over or gave them over to another boundary level of sin.

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The Epic Life