Ambrose of Milan

Finally, listen to Moses saying: He spread his wings and took them, and carried them on his shoulders (Deuteronomy 32:11): just as an eagle carries its offspring, which it is accustomed to examine; in order to hold and nurture those who have the true nature of birth, and to observe the grace of incorruptible nature; or to reject those in whom it has detected the weakness of a degenerate origin at a tender age.

Interrogation of Job and David, Chapter V ↗

Jerome

The song in Deuteronomy says that he bore the people of Israel upon his shoulders and like the eagle guarded them. This same versicle may be interpreted also of the Savior because on the cross he gave us the shelter of his wings. "Under his wings you shall take refuge." "All the day long I stretched out my hand to a people unbelieving and contradicting." The hands of the Lord lifted up to heaven were not begging for help but were sheltering us, his miserable creatures.

Homily 68