Exodus 19:4

On eagles’ wings - Both in the law Deuteronomy 32:11 and in the Gospel Matthew 23:37, the Church is compared to fledgelings which the mother cherishes and protects under her wings: but in the law that mother is an eagle, in the Gospels “a hen”; thus shadowing forth the diversity of administration under each covenant: the one of power, which God manifested when He brought His people out of Egypt with a mighty hand and an outstretched arm, and led them into the promised land; the other of grace, when Christ came in humility and took the form of a servant and became obedient unto death, even the death of the Cross. Compare also Revelation 12:14.