Revelation 9:13
And the sixth angel sounded the trumpet, and I heard one voice from the four horns of the golden altar which is before God,
Exodus 30:2-3
A cubit its length, a cubit its breadth; it shall be four-square; and two cubits its height: its horns out of it.
Hebrews 9:24
For Christ came not into the holy places made with hands, the figures of the true; but into heaven itself, now to be shown clearly to the face of God for us:
Hebrews 10:21
And a great priest over the house of God;
Revelation 8:3-5
And another angel came and was placed by the altar, having a golden censer; and many perfumes were given him, that he might give to the prayers of the holy upon the golden altar before the throne.
Revelation 9:1
And the fifth angel sounded the trumpet, and I saw a star fallen from heaven to the earth: and there was given to him the key of the well of the bottomless pit.