God took an oath that Christ would always be a priest, but he never did this for any other priest.
Only to Jesus did he say, "The Lord has taken an oath and will not break his vow: 'You are a priest forever.'" a22
Because of God's oath, it is Jesus who guarantees the effectiveness of this better covenant.
Another difference is that there were many priests under the old system. When one priest died, another had to take his place.
But Jesus remains a priest forever; his priesthood will never end.
Therefore he is able, once and forever, to save b everyone who comes to God through him. He lives forever to plead with God on their behalf.
He is the kind of high priest we need because he is holy and blameless, unstained by sin. He has now been set apart from sinners, and he has been given the highest place of honor in heaven.
He does not need to offer sacrifices every day like the other high priests. They did this for their own sins first and then for the sins of the people. But Jesus did this once for all when he sacrificed himself on the cross.
Those who were high priests under the law of Moses were limited by human weakness. But after the law was given, God appointed his Son with an oath, and his Son has been made perfect forever.
Scripture quotations marked NLT are taken from the Holy Bible, New Living Translation, copyright 1996. Used by permission of Tyndale House Publishers, Inc., Wheaton, Illinois 60189. All rights reserved. (New Living Translation - The Bible Online)