Revelation 10:8

And the voice that I had heard from heaven [was] speaking with me again and saying, "Go, take the opened scroll in the hand of the angel who is standing on the sea and on the land."

Isaiah 30:21

And your ears shall hear a word from behind you, saying, "this [is] the way; walk in it," when you go to your right and when you go to your left.

Revelation 10:2

and holding in his hand a little scroll that was opened. And he put his right foot on the sea and his left on the land.

Revelation 10:4-5

And when the seven thunders spoke, I was about to write, and I heard a voice from heaven saying, "Seal up [the things] which the seven thunders spoke, 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 spoke, I was about to write, and I heard a voice from heaven saying, "Seal up [the things] which the seven thunders spoke, and do not write them!"
Isaiah 30:21
And your ears shall hear a word from behind you, saying, "this [is] the way; walk in it," when you go to your right and when you go to your left.