Hebrews 7:16-24

16who hath been made, not after the law of a carnal commandment, but after the power of an endless life: 17for it is witnessed of him,

18For there is a disannulling of a foregoing commandment because of its weakness and unprofitableness 19(for the law made nothing perfect), and a bringing in thereupon of a better hope, through which we draw nigh unto God. 20And inasmuch as it is not without the taking of an oath 21(for they indeed have been made priests without an oath; but he with an oath by him that saith of him,

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.