Whether the gift of understanding is compatible with faith?

Objections

Objection 1 : It would seem that the gift of understanding is incompatible with faith. For Augustine says (Questions. lxxxiii, qu. 15) that "the thing which is understood is bounded by the comprehension of him who understands it." But the thing which is believed is not comprehended, according to the word of the Apostle to the Philippians 3:12: "Not as though I had already comprehended [Douay: 'attained'], or were already perfect." Therefore it seems that faith and understanding are incompatible in the same subject.
Objection 2 : Further, whatever is understood is seen by the understanding. But faith is of things that appear not, as stated above (Question [1], Article [4]; Question [4], Article [1]). Therefore faith is incompatible with understanding in the same subject.
Objection 3 : Further, understanding is more certain than science. But science and faith are incompatible in the same subject, as stated above (Question [1], Articles [4],5). Much less, therefore, can understanding and faith be in the same subject.