Leviticus 13:23
“But if the bright spot stay in his place, and spread not, it is a burning boil; and the priest shall pronounce him clean.”
But if the priest look on it, and, behold, there be no white hairs therein, and if it be not lower than the skin, but be somewhat dark; then the priest shall shut him up seven days:
And if it spread much abroad in the skin, then the priest shall pronounce him unclean: it is a plague.
But if the bright spot stay in his place, and spread not, it is a burning boil; and the priest shall pronounce him clean.
Or if there be any flesh, in the skin whereof there is a hot burning, and the quick flesh that burneth have a white bright spot, somewhat reddish, or white;
Then the priest shall look upon it: and, behold, if the hair in the bright spot be turned white, and it be in sight deeper than the skin; it is a leprosy broken out of the burning: wherefore the priest shall pronounce him unclean: it is the plague of leprosy.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“So that contrariwise ye ought rather to forgive him, and comfort him, lest perhaps such a one should be swallowed up with overmuch sorrow.”
“And David said unto Nathan, I have sinned against the Lord. And Nathan said unto David, The Lord also hath put away thy sin; thou shalt not die.”
“And Peter remembered the word of Jesus, which said unto him, Before the cock crow, thou shalt deny me thrice. And he went out, and wept bitterly.”
“Brethren, if a man be overtaken in a fault, ye which are spiritual, restore such an one in the spirit of meekness; considering thyself, lest thou also be tempted.”
“That he no longer should live the rest of his time in the flesh to the lusts of men, but to the will of God.”