Christ instituted the Sacrament of Reconciliation in John when he reappeared to the Apostles after His death and resurrection. Hence, the sacrament comes from Jesus and not from the Priest, who is a mere intercessor in the whole affair, much like the saints we pray to for help. For example, when you receive the Holy Eucharist, in all of its life-giving grace which Jesus promised us, is it the Priest who consecrated the Eucharist that is saving you, or is it Jesus? The Church serves as an instrument for Christ's mission, due to Apostalic succession, the sacraments, etc., but faith and salvation remain a matter of the individual and his/her personal, spiritual relationship with God.