Hebrews 7:8-10

Or look at it this way: We pay our tithes to priests who die, but Abraham paid tithes to a priest who, the Scripture says, “lives.” Ultimately you could even say that since Levi descended from Abraham, who paid tithes to Melchizedek, when we pay tithes to the priestly tribe of Levi they end up with Melchizedek.