Cyril of Alexandria, on Exod 19:19

“And the sound of the trumpet grew by degrees louder and louder, and was drawn out to a greater length: Moses spoke, and God answered him.”

“And this is pictured for you in the writings of Moses. For the God of all came down in the likeness of fire on Mt. Sinai, and there was a cloud, and darkness, and gloom and the voice of the trumpet with a loud ringing sound, according to the Scripture. The notes of the trumpet were, it says, few at first, but afterwards they waxed longer and became louder and louder continually. What then was it which the shadow of the law signified to us by these things? Was it not this: that at first there were but few to publish the gospel tidings; but afterwards they became many?”

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