Whether the habitual grace of Christ followed after the union?

Objections

Objection 1 : It would seem that the habitual grace did not follow after the union. For nothing follows itself. But this habitual grace seems to be the same as the grace of union; for Augustine says (De Praedest. Sanct. xv): "Every man becomes a Christian from the beginning of his belief, by the same grace whereby this Man from His beginning became Christ"; and of these two the first pertains to habitual grace and the second to the grace of union. Therefore it would seem that habitual grace did not follow upon the union.
Objection 2 : Further, disposition precedes perfection, if not in time, at least in thought. But the habitual grace seems to be a disposition in human nature for the personal union. Therefore it seems that the habitual grace did not follow but rather preceded the union.
Objection 3 : Further, the common precedes the proper. But habitual grace is common to Christ and other men; and the grace of union is proper to Christ. Therefore habitual grace is prior in thought to the union. Therefore it does not follow it.