“After His resurrection, Jesus, appeared to His disciples on Easter Sunday evening. He conferred the power to forgive sins by breathing on them. This corresponds to God breathing life into Adam. And so, Jesus breathes life giving power to forgive sins into his disciples. Note that this is before Pentecost and the general bestowal of the Holy Spirit. This is a special and unique pouring out of the Holy Spirit for the disciples, the first priests and bishops of the Christian Church.”
So after Pentacost and the general bestowal of the Holy Spirit, why would one need a “priest” to confess? With the Holy Spirit in one’s own heart, why would a sinner need a Priest?
Thank you, Sunny, for posing an excellent question.
Christ told the apostles to follow his example: "As the Father has sent me, even so I send you" (John 20:21). Just as the apostles were to carry Christ’s message to the whole world, so they were to carry his forgiveness: "Truly, I say to you, whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven" (Matt. 18:18).
This power was understood as coming from God: "All this is from God, who through Christ reconciled us to himself and gave us the ministry of reconciliation" (2 Cor. 5:18). Indeed, confirms Paul, "So we are ambassadors for Christ" (2 Cor. 5:20).
Note that the power Christ gave the apostles was twofold: to forgive sins or to hold them bound, which means to retain them unforgiven. Several things follow from this. First, the apostles could not know what sins to forgive and what not to forgive unless they were first told the sins by the sinner. This implies confession. Second, their authority was not merely to proclaim that God had already forgiven sins or that he would forgive sins if there were proper repentance.
If God has already forgiven all of a man’s sins, or will forgive them all (past and future) upon a single act of repentance, then it makes little sense to tell the apostles they have been given the power to "retain" sins, since forgiveness would be all-or-nothing and nothing could be "retained."
Hope this addresses your question.