Whether the morning and evening knowledge are one?

Objections

Objection 1 : It would seem that the morning and the evening knowledge are one. For it is said (Gn. 1:5): "There was evening and morning, one day." But by the expression "day" the knowledge of the angels is to be understood, as Augustine says (Gen. ad lit. iv, 23). Therefore the morning and evening knowledge of the angels are one and the same.
Objection 2 : Further, it is impossible for one faculty to have two operations at the same time. But the angels are always using their morning knowledge; because they are always beholding God and things in God, according to Mt. 18:10. Therefore, if the evening knowledge were different from the morning, the angel could never exercise his evening knowledge.
Objection 3 : Further, the Apostle says (1 Cor. 13:10): "When that which is perfect is come, then that which is in part shall be done away." But, if the evening knowledge be different from the morning, it is compared to it as the less perfect to the perfect. Therefore the evening knowledge cannot exist together with the morning knowledge.