Augustine of Hippo
Catena Aurea · Matthäusevangelium 18
Take heed that ye despise not one of these little ones; for I say unto you, That in heaven their angels do always behold the face of my Father which is in heaven. For the Son of man is come to save that which was lost. How think ye? if a man have an hundred sheep, and one of them be gone astray, doth he not leave the ninety and nine, and goeth into the mountains, and seeketh that which is gone astray? And if so be that he find it, verily I say unto you, he rejoiceth more of that sheep, than of the ninety and nine which went not astray. Even so it is not the will of your Father which is in heaven, that one of these little ones should perish.
(de Civ. Dei, xxii. 29.) Or; They are called our Angels who are indeed the Angels of God. they are Gods because they have not forsaken Him; they are ours because they have begun to have us for their fellow-citizens. As they now behold God, so shall we also behold Him face to face, of which vision John speaks, We shall see him as he is. (1 John 3:2.) For by the face of God is to be understood the manifestation of Himself, not a member or feature of the body, such as we call by that name.