Hebrews 7:11

11 The Levite priests were a necessary part of God's Law for Israel's people. But those priests could not make the people completely right with God. If that had been possible, the Levite priests could have continued their work. But we see that God has chosen a different kind of priest to serve him. That priest is not someone from Aaron's family, as the Levites were. Instead, he is a priest in the same way that Melchizedek was God's priest.