Matthew 8:1-17 tells of Jesus continuing his healing ministry. He healed a man with leprosy and a Roman centurion displayed his faith in Jesus, so Jesus healed his servant because of the great faith of the roman. He healed many that came to him.
Leviticus 8 goes into some length on how the ordination of Aaron and his sons was performed.
In Leviticus 9 the priestly ministry begins.
And in Leviticus 10 two of Aaron’s sons were killed by fire for violating the command of God. But Aaron’s uncle had two sons and together with two other sons of Aaron they became the new priests and the rest of the chapter deals with how they should behave.