Revelation chapter 8 talks about the prayers of the saints resulting in the seven trumpets of God’s judgment. In this Bible verse the saints are the Christians and God’s people. The first four trumpets are covered in this chapter. The key verses are:
The prayers of the saints are offered: Rev 8:3 And another angel came and stood at the altar, having a golden censer; and there was given unto him much incense, that he should offer it with the prayers of all saints upon the golden altar which was before the throne.
The prayers of the saints are accepted by God: Rev 8:4 And the smoke of the incense, which came with the prayers of the saints, ascended up before God out of the angel’s hand.
The prayers of God’s people are answered by God: Rev 8:5 And the angel took the censer, and filled it with fire of the altar, and cast it into the earth: and there were voices, and thunderings, and lightnings, and an earthquake.