Whether Christ should have appeared to the disciples "in another shape"?

Objections

Objection 1 : It would seem that Christ ought not to have appeared to the disciples "in another shape." For a thing cannot appear in very truth other than it is. But there was only one shape in Christ. Therefore if He appeared under another, it was not a true but a false apparition. Now this is not at all fitting, because as Augustine says (Questions. lxxxiii, qu. 14): "If He deceives He is not the Truth; yet Christ is the Truth." Consequently, it seems that Christ ought not to have appeared to the disciples "in another shape."
Objection 2 : Further, nothing can appear in another shape than the one it has, except the beholder's eyes be captivated by some illusions. But since such illusions are brought about by magical arts, they are unbecoming in Christ, according to what is written (2 Cor. 6:15): "What concord hath Christ with Belial?" Therefore it seems that Christ ought not to have appeared in another shape.
Objection 3 : Further, just as our faith receives its surety from Scripture, so were the disciples assured of their faith in the Resurrection by Christ appearing to them. But, as Augustine says in an Epistle to Jerome (xxviii), if but one untruth be admitted into the Sacred Scripture, the whole authority of the Scriptures is weakened. Consequently, if Christ appeared to the disciples, in but one apparition, otherwise than He was, then whatever they saw in Christ after the Resurrection will be of less import, which is not fitting. Therefore He ought not to have appeared in another shape.