It is above all a good conscience which makes the bread tasty because it is eaten in justice.
Repentance is the biblical, correct response to guilt. The moment we committed our life to Christ, our sins-past, present, and future-were forgiven. God’s righteousness was satisfied. But now we must maintain fellowship with, dependence on, and obedience to God. This necessitates confessing our sins to our Lord as we become aware of them. C. S. Lewis said true guilt is an inner alarm system that reveals sin in our lives and shows our loss of fellowship with God. The Holy Spirit uses guilt to prompt us to turn from our sin and back to the Lord.
Conscience comes to us in lonely hours; it wakens us in the night; it stands at the side of the bed and says, Come, wake up and listen to me! And there it holds us with its remorseless eye; and our buried sins rise out of the grave of the past; they march by in melancholy procession; and we lie in terror looking at them. Nobody knows but ourselves. Next morning we go forth to business with a smiling face; but conscience has had its revenge.