There was a long succession of priests because when a priest died he could no longer serve.
But John tried to stop him and said, “I need to be baptized by you. Why are you coming to me?”
but Jesus became a priest when God took an oath. God said about him, “The Lord has taken an oath and will not change his mind. You are a priest forever.”
In this way Jesus has become the guarantee of a better promise.
But Jesus lives forever, so he serves as a priest forever.
Priests receive a tenth of everything, but they die. Melchizedek received a tenth of everything, but we are told that he lives.