Passage
And the sound of a trumpet and the voice of words, which they that had excused themselves, that the word might not be spoken to them.
And the sound of a trumpet and the voice of words, which they that had excused themselves, that the word might not be spoken to them.
Hebrews 12:17 For know ye that afterwards, when he desired to inherit the benediction, he was rejected. For he found no place of repentance, although with tears he had sought it.
Hebrews 12:18 For you are not come to a mountain that might be touched and a burning fire and a whirlwind and darkness and storm,
Hebrews 12:19 And the sound of a trumpet and the voice of words, which they that had excused themselves, that the word might not be spoken to them.
Hebrews 12:20 For they did not endure that which was said: and if so much as a beast shall touch the mount, it shall be stoned.
Hebrews 12:21 And so terrible was that which was seen, Moses said: I am frighted, and tremble.
The verse centers on "sound", "trumpet", "voice", "words", "excused", "themselves", and "might". It is saying that the verse draws attention to "sound" and "trumpet", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 18's "For you are not come to a..." into verse 20's "For they did not endure that which...", so "sound" and "trumpet" belong inside that flow. In Hebrews context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "sound" and "trumpet" with trust shaped by these words, not by a vague optimism outside the passage.