Hebrews 7:23 - 7:24
23 And the former priests, on the one hand, existed in greater numbers because they were prevented by death from continuing, 24 but Jesus, on the other hand, because He continues forever, holds His priesthood permanently.
Hebrews 7:27
27 who does not need daily, like those high priests, to offer up sacrifices, first for His own sins and then for the sins of the people, because this He did once for all when He offered up Himself.