4 And the smoke of the perfumes went up, with the prayers of the holy, from the angel's hand before God.
Revelation 8:4 Cross References - JuliaSmith
Exodus 30:1
1 And make an altar for burning incense: of acacia wood shalt thou make it
Psalms 141:2
2 My prayer shall be prepared incense before thee; the lifting up my hands the gift of the evening.
Luke 1:10
10 And all the multitude of people were praying without at the hour of incense.
Revelation 8:3
3 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 15:8
8 And the temple was filled with smoke from the glory of God, and from his power; and none could come into the temple, till the seven blows of the seven angels were finished.