Sorry. I didn’t mean to seem rude. We weren’t discussing vicarious anything, but the Priesthood after Christ’s Resurrection. Acts 19 shows the Priesthood in action, post Resurrection. Without a formal Priesthood you get anarcho-Christianity the opposite of Ephesians 4:5: one Lord, one faith, one baptism. There can only be one truth. If anything is the Lord’s Church then nothing is.
A priesthood is a vicarious appeal for salvation.
There has been no priesthood since the veil was torn in the temple. We are now each on his own before God; no one may appeal on our behalf. That is what a priesthood is.
Yeshua appointed no one to be the dispensor of truth, but his word. The Holy Spirit guides each of God’s elect.