Revelation 9:13
Then the sixth angel blew his trumpet, and I heard a single voice coming from the horns on the golden altar that is before God,
Exodus 30:2-3
Its length is to be a foot and a half and its width a foot and a half; it will be square. Its height is to be three feet, with its horns of one piece with it.
Hebrews 9:24
For Christ did not enter a sanctuary made with hands -- the representation of the true sanctuary -- but into heaven itself, and he appears now in God's presence for us.
Hebrews 10:21
and since we have a great priest over the house of God,
Revelation 8:3-5
Another angel holding a golden censer came and was stationed at the altar. A large amount of incense was given to him to offer up, with the prayers of all the saints, on the golden altar that is before the throne.
Revelation 9:1
Then the fifth angel blew his trumpet, and I saw a star that had fallen from the sky to the earth, and he was given the key to the shaft of the abyss.