I will therefore put you in remembrance, though you once knew this, how that the Lord, having saved the people out of the land of Egypt, afterward destroyed them that believed not.
All Commentaries on Jude 1:5 Go To Jude 1
Aquinas Study Bible
AD 2017
Jesus having saved the people: He is referring not to Jesus the son of Nun but to our Lord, showing first that he did not have his beginning at his birth, as the heretics have wished to assert, but he existed as the eternal God. (St. Bede) He pitied them when they were calling out to him, but he plunged them afterward into worse ruin when they lost faith in the desert and were murmuring against God. Their slavery in Egypt prefigures our slavery to our former vices. (Erasmus)