There have been a lot of other priests, and all of them have died.
But John kept objecting and said, “I ought to be baptized by you. Why have you come to me?”
This means that Jesus guarantees us a better agreement with God.
But Jesus will never die, and so he will be a priest for ever!
Priests are given a tenth of what people earn. But all priests die, except Melchizedek, and the Scriptures teach that he is alive.