Theophylact of Ohrid, on Heb 12:21

“And so terrible was that which was seen, Moses said: I am frighted, and tremble.”

“He shows the superiority of the New Testament in this as well. For the Old Testament, not having anything as great as the New, was something terrifying, so that according to it not even a beast could touch the mountain (Exod. 19:12), that is, any of those animals that the people had. But the New Testament, possessing all perfection, contains nothing fearful; on the contrary, everything in it is merciful. "That Moses also said: 'I am in fear and trembling.'" If the great Moses, who entered the cloud, felt this way, then how much more so the people?”

Imported from an open dataset — not yet checked against the printed edition.