As we have read several times in Hebrews, Jesus is superior to any of the priests descended from Levi. And in today’s reading the author states very succinctly “why” – His sacrifice removed the need for any others.
Hebrews 7: 26 Such a high priest truly meets our need—one who is holy, blameless, pure, set apart from sinners, exalted above the heavens. 27 Unlike the other high priests, he does not need to offer sacrifices day after day, first for his own sins, and then for the sins of the people. He sacrificed for their sins once for all when he offered himself.