The former priests were many in number, because they were prevented by death from continuing in office,
John would have prevented him, saying, "I need to be baptized by you, and do you come to me?"
but this one was made a priest with an oath by the one who said to him: "The Lord has sworn and will not change his mind, 'You are a priest forever.' "
This makes Jesus the guarantor of a better covenant.
but he holds his priesthood permanently, because he continues forever.
In the one case tithes are received by mortal men, but in the other case, by one of whom it is testified that he lives.