Hebrews 7:21-25

21(for they indeed have been made priests without an oath; but he with an oath by him that saith of him, The Lord sware and will not repent himself, Thou art a priest for ever);

22by so much also hath Jesus become the surety of a better covenant.

23And they indeed have been made priests many in number, because that by death they are hindered from continuing:

24but he, because he abideth for ever, hath his priesthood unchangeable.

25Wherefore also he is able to save to the uttermost them that draw near unto God through him, seeing he ever liveth to make intercession for them.