Since worship has a new place—“in spirit and in truth”—it calls for a new priesthood. Peter writes to members of the New Covenant,
You yourselves like living stones are being built up as a spiritual house, to be a holy priesthood, to offer spiritual sacrifices acceptable to God through Jesus Christ. (1 Peter 2:5 cf. Revelation 1:6; 5:10)
Do you see the change? Being a priest no longer depends on fleshly descent from the family line of Aaron. Now you—if you have been born into God’s family—you belong to a holy priesthood. Jesus Himself, as our new High Priest, fulfills the Old Testament shadows about mediation between God and His people (Hebrews 2:17; 3:1; 4:14-15; 5:5; 8:1). But those old, priestly shadows also point to us as priests in Christ. We minister in a new order of priesthood with a new temple and new worship. This means that we do not serve in ways prescribed by Moses and David. Instead, we serve in a new and different way.
Now we are released from the law… so that we serve in the new way of the Spirit and not in the old way of the written code. (Romans 7:6)