If we are to re-frame this discussion along biblical lines, then we must emphasize the necessity of repentance for the Christian faith. The point is not that the pastor and the Knapp are both sinners. It's that the pastor agrees with God about his sin, while Knapp remains in her sin without repentance. That is why he is questioning her Christianity, for Christian teaching makes clear the necessity of repentance as the entryway into the Christian family.
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