Hebrews 12:21 (KJV)

Passage

And so terrible was the sight, that Moses said, I exceedingly fear and quake:)

Nearby Context

Hebrews 12:19 And the sound of a trumpet, and the voice of words; which voice they that heard intreated that the word should not be spoken to them any more:

Hebrews 12:20 (For they could not endure that which was commanded, And if so much as a beast touch the mountain, it shall be stoned, or thrust through with a dart:

Hebrews 12:21 And so terrible was the sight, that Moses said, I exceedingly fear and quake:)

Hebrews 12:22 But ye are come unto mount Sion, and unto the city of the living God, the heavenly Jerusalem, and to an innumerable company of angels,

Hebrews 12:23 To the general assembly and church of the firstborn, which are written in heaven, and to God the Judge of all, and to the spirits of just men made perfect,

Study Lenses

The verse centers on "terrible", "sight", "moses", "said", "exceedingly", "fear", and "quake". It is saying that the verse draws attention to "terrible" and "sight", so its meaning should be read from those terms before moving to application.

The nearby context moves from verse 20's "For they could not endure that which..." into verse 22's "But ye are come unto mount Sion...", so "terrible" and "sight" 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 "terrible" and "sight" with trust shaped by these words, not by a vague optimism outside the passage.