Revelation 8:6

King James Version - American Edition

And the seven angels which had the seven trumpets prepared themselves to sound.

Cross References

Matthew 26:17

Now the first day of the feast of unleavened bread the disciples came to Jesus, saying unto him, Where wilt thou that we prepare for thee to eat the passover?

Revelation 8:2

And I saw the seven angels which stood before God; and to them were given seven trumpets.