Hebrews 7:21-25

21but he became a priest with an oath made by the one who said to him: The Lord has sworn and will not change his mind, “You are a priest forever.”

22Because of this oath, Jesus has also become the guarantee of a better covenant.

23Now many have become Levitical priests, since they are prevented by death from remaining in office.

24But because he remains forever, he holds his priesthood permanently.

25Therefore, he is able to save completely those who come to God through him, since he always lives to intercede for them.