Revelation 10:8

And, the voice which I had heard out of heaven, I again heard talking with me; and saying - Go take the opened scroll, that is in the hand of the messenger who is standing upon the sea and upon the land.

Isaiah 30:21

So shall, thine own ears, hear a word from behind thee saying, - This, is the way, walk ye therein, When ye would turn to the right hand Or when ye would turn to the left.

Revelation 10:2

and he was holding in his hand a little scroll, opened; and he set his right foot upon the sea, and his left upon the land,

Revelation 10:4-5

And, when the seven thunders had spoken, I was about to write, and I heard a voice out of heaven, saying - Seal up the things which the seven thunders have uttered, and do not write, them.

Treasury of Scripture Knowledge

Summary

And the voice which I heard from heaven spake unto me again, and said, Go and take the little book which is open in the hand of the angel which standeth upon the sea and upon the earth.

Bible References

The voice

Revelation 10:4
And, when the seven thunders had spoken, I was about to write, and I heard a voice out of heaven, saying - Seal up the things which the seven thunders have uttered, and do not write, them.
Isaiah 30:21
So shall, thine own ears, hear a word from behind thee saying, - This, is the way, walk ye therein, When ye would turn to the right hand Or when ye would turn to the left.