seven angels.

Revelation 15:1
Then I saw another great and marvelous sign in heaven: seven angels with the seven final plagues, with which the wrath of God will be completed.

Revelation 16:1
Then I heard a loud voice from the temple saying to the seven angels, "Go, pour out on the earth the seven bowls of God's wrath."

Matthew 18:10
See that you do not look down on any of these little ones. For I tell you that their angels in heaven always see the face of my Father in heaven.

Luke 1:19
"I am Gabriel, " replied the angel. "I stand in the presence of God, and I have been sent to speak to you and to bring you this good news.

trumpets.

Revelation 8:6-12
And the seven angels with the seven trumpets prepared to sound them. . . .

Revelation 9:1, 13, 14
Then the fifth angel sounded his trumpet, and I saw a star that had fallen from heaven to earth, and it was given the key to the pit of the Abyss. . . .

Revelation 11:15
Then the seventh angel sounded his trumpet, and loud voices called out in heaven: "The kingdom of the world has become the kingdom of our Lord and of His Christ, and He will reign forever and ever."

See on

Numbers 10:1-10
Then the LORD said to Moses, . . .

2 Chronicles 29:25-28
Hezekiah stationed the Levites in the house of the LORD with cymbals, harps, and lyres according to the command of David, of Gad the king's seer, and of Nathan the prophet. For the command had come from the LORD through His prophets. . . .

Amos 3:6-8
If a trumpet sounds in a city, will the people not tremble? If calamity comes to a city, has not the LORD caused it? . . .