Acts 9:7

His fellow-travelers stood speechless, for they heard the voice but could not see anyone.

Acts 22:9

The men who were with me saw the light, but they did not hear the voice of Him who was speaking to me.

Hebrews 12:21

and so terrifying was the sight that Moses said, "I am terrified and terror-stricken!"

Treasury of Scripture Knowledge

Summary

And I Daniel alone saw the vision: for the men that were with me saw not the vision; but a great quaking fell upon them, so that they fled to hide themselves.

General references

Bible References

Alone

Acts 9:7
His fellow-travelers stood speechless, for they heard the voice but could not see anyone.
Acts 22:9
The men who were with me saw the light, but they did not hear the voice of Him who was speaking to me.

But

Hebrews 12:21
and so terrifying was the sight that Moses said, "I am terrified and terror-stricken!"

General references

Matthew 17:6
When the disciples heard it, they fell upon their faces, for they were terribly frightened.
Acts 9:7
His fellow-travelers stood speechless, for they heard the voice but could not see anyone.