Like Baptism which it completes, Confirmation is given only once, for it too imprints on the soul an indelible spiritual mark, the “character”, which is the sign that Jesus Christ has marked a Christian with the seal of his Spirit by Clothing him with power from on high so that he may be his witness. This “character” perfects the common priesthood of the faithful, received in Baptism, and “the confirmed person received the power to profess faith in Christ publicly and as it were officially (quasi Exofficio).