Christ’s. The following would appear to be true of any human reality other than Christ’s: (a) it contains a human nature that grounds a person; (b) it contains a human nature – the same one, of course – that constitutes that person as human; and (c) it contains additional principles that constitute that person in all the various additional ways involved in the concrete existence of a human person. It seems that for Aquinas, Christ’s human reality does (b) and (c) but not (a).
