Êxodo 19
Bede
Êxodo 19:6
The apostle Peter now rightly gives to the Gentiles this attestation of praise which formerly was given by Moses to the ancient people of God, because they believed in Christ, who like a cornerstone brought the Gentiles into that salvation which Israel had had for itself. He calls them "a chosen race" on account of their faith, that he may distinguish them from those who by rejecting the living stone have themselves become rejected. They are "a royal priesthood," however, because they have been joined to his body who is their real king and true priest, who as king grants to his own a kingdom and as their high priest cleanses them of their sins by the sacrificial victim of his own blood. He names them "a royal priesthood" that they may remember both to hope for an eternal kingdom and always to offer to God the sacrifices of a stainless way of life. — Commentary on the Catholic Epistles, 1 Peter 2:9
Êxodo 19:18
When about to give the law, the Lord descended in fire and smoke. Through the brilliance of his manifestation he enlightened the humble, and through the murky smoke of error he dimmed the eyes of the proud. — Commentary on Acts 2
Êxodo 19:20
Moses alone ascended to its very top, where the divine majesty shone forth in fire and a dark cloud. Only the more perfect know how to grasp and observe the deeper and most secret mysteries of the law; the carnal-minded people, content with the external aspects of the letter, and gathered apart, as it were, and below, stood to hear the words from heaven. — Homilies on the Gospels 11.17