Heb来 Hebrews希伯来书, chapter章 Epistle to the Hebrews希伯来书, chapter章 7

And inasmuch as it is not without an oath, (for the others indeed were made priests without an oath; But this with an oath, by him that said unto him: The Lord hath sworn, and he will not repent, Thou art a priest for ever.) Psa 109:4