Revelation 19:5

and from the throne there came a voice which said-- 'Praise our God all you who serve him, You who reverence him, both high and low.'

Revelation 20:12

And I saw the dead, high and low, standing before the throne; and books were opened. Then another book was opened, the Book of Life; and the dead were judged, according to their actions, by what was written in the books.

Revelation 7:15

And therefore it is that they are before the throne of God, and are serving him day and night in his Temple; and he who is seated on the throne will shelter them.

Revelation 11:18-19

The nations were enraged, and thy Wrath fell upon them; the time came for the dead to be judged, and for thee to give the reward to thy servants the Prophets, and to the People of Christ, and to those who reverence thy Name--the high and the low alike--and to destroy those who are destroying the earth.'

Revelation 16:17

Then the seventh Angel emptied his bowl upon the air. (A loud voice came from the throne in the Temple; it said 'All is over.')

Treasury of Scripture Knowledge

Summary

And a voice came out of the throne, saying, Praise our God, all ye his servants, and ye that fear him, both small and great.

General references

Bible References

A voice

Revelation 7:15
And therefore it is that they are before the throne of God, and are serving him day and night in his Temple; and he who is seated on the throne will shelter them.
Revelation 11:19
Then the Temple of God in Heaven was opened, and the Ark containing his Covenant was seen in his Temple; and there followed 'flashes of lightning, cries, peals of thunder,' an earthquake, and 'a great storm of hail.'
Revelation 16:17
Then the seventh Angel emptied his bowl upon the air. (A loud voice came from the throne in the Temple; it said 'All is over.')

General references

Luke 1:50
From age to age his mercy rests On those who reverence him.
Romans 3:18
'The fear of God is not before their eyes.'