"some were particularly interesting, especially the seventh century source that talks about the 'uberorium gratiam' that is owed to confirmation. To my knowledge, credit for a theology of the effect of confirmation based upon different degrees of grace (when the Holy Spirit has already been received in baptism) has been given to the ninth century. I am interested in the question of when and why confirmation was identified with the bishop's imposition of hands or with holy chrism on the forehead, and your references add to my curiosity."