A Pharaoh said, I have sinned against the Lord your God.
The prophet Balaam said, I have sinned.
The disciple Judas said, I have sinned.
Pharaoh only wanted to be rid of the consequences of his sin.
Balaam only wanted to go on in his own way after he knew it was not the way of God.
Judas was full of remorse, but he did not ask for forgiveness, though he must have known something of the loving heart of the Christ. He did not believe in His love nor seek it for himself.
King David said, I have sinned, and he claimed forgiveness and cleansing.
The prodigal son said, I have sinned, and he went to his father to ask forgiveness.
The publican cried, God be merciful to me a sinner.
The thief on the cross admitted his guilt and pleaded, Lord, remember me.
It is not enough to feel a burden. You must get rid of it.
It is not enough to see yourself as a sinner. You must see Christ crucified for you.
It is not the knowledge of the disease of sin that cures us. It is the Great Physician.
You must become a child of God by faith in Christ Jesus.
It is as simple as that.