Whether the angel's intellect is sometimes in potentiality, sometimes in act?

Objections

Objection 1 : It would seem that the angel's intellect is sometimes in potentiality and sometimes in act. For movement is the act of what is in potentiality, as stated in Phys. iii, 6. But the angels' minds are moved by understanding, as Dionysius says (Div. Nom. iv). Therefore the angelic minds are sometimes in potentiality.
Objection 2 : Further, since desire is of a thing not possessed but possible to have, whoever desires to know anything is in potentiality thereto. But it is said (1 Pt. 1:12): "On Whom the angels desire to look." Therefore the angel's intellect is sometimes in potentiality.
Objection 3 : Further, in the book De Causis it is stated that "an intelligence understands according to the mode of its substance." But the angel's intelligence has some admixture of potentiality. Therefore it sometimes understands potentially.