Revelation 9:13
And the sixth agent sounded, and I heard a voice, one from the four horns of the golden altar before God,
Exodus 30:2-3
A cubit shall be the length of it, and a cubit the breadth of it (it shall be foursquare), and two cubits shall be the height of it. The horns of it shall be of one piece with it.
Hebrews 9:24
For the Christ entered not into a holy place made with hands, representative of the true, but into heaven itself, now to appear in the presence of God for us.
Hebrews 10:21
and a great priest over the house of God,
Revelation 8:3-5
And another agent came and stood at the altar, having a golden censer. And much incense was given to him, so that he would give with the prayers of all the sanctified upon the golden altar before the throne.
Revelation 9:1
And the fifth agent sounded, and I saw a star fallen from the sky to the earth. And the key of the pit of the abyss was given to him.