Leviticus - Chapter 14
In this chapter we see the regulations for the ceremonial cleansing of a person who has been healed of an infectious skin disease. There is a very long process over many days, involving various offerings (including a sin offering; a guilt offering; and a grain offering).
In Chapter 13 we saw Jesus healing a man with a skin disease. When he had healed him, Jesus said to him:
"See that you don't tell anyone. But go, show yourself to the priest and offer the gift Moses commanded, as a testimony to them." Jesus wanted to ensure that the process in Leviticus was properly followed.