Hebrews 7:12-14

And furthermore, for God to send a new and different rank of priest, meant a new law would have had to be instituted even to allow it! Yet the One these things all point to, was from a different tribe and no one from that tribe ever officiated at God’s altar, for we all know that our Lord didn’t descend from the tribe of Levi, but shined from the tribe of Judah. And Moses himself never said anything of a priest in connection with Judah’s tribe.