Revelation 9:17

And thus I saw the horses in the vision, and those who sat on them, having breastplates of a fiery, and a dark blue, and a brimstone color; and the heads of the horses were as the heads of lions, and out of their mouths issued fire, and smoke, and brimstone.

Revelation 9:18

By these three plagues was the third part of men killed, by the fire, and the smoke, and the brimstone, which issued out of their mouths.

Revelation 14:10

the same shall drink of the wine of the wrath of God, which is poured out without mixture into the cup of his indignation, and he shall be tormented with fire and brimstone in the presence of the angels, and in the presence of the Lamb.

Revelation 19:20

And the beast was seized and he who was with him, the false prophet who wrought the signs in his presence, with which he deceived those who received the mark of the beast, and who worshipped his image; the two were cast alive into the lake of fire burning with brimstone.

Revelation 21:8

But the cowardly, and unbelieving, and the polluted with abominations, and murderers, and fornicators, and sorcerers, and idolaters, and all the liars, shall have their part in the lake which burneth with fire and brimstone; which is the second death.

Revelation 9:9

And they had breastplates like breastplates of iron, and the sound of their wings was as the sound of chariots of many horses running to battle.

Revelation 11:5

And if any one designs to hurt them, fire goeth out of their mouth, and devoureth their enemies; and if any one designs to hurt them, he must in this manner be killed.

Revelation 20:10

And the Devil who deceived them was cast into the lake of fire and brimstone, where are also the beast and the false prophet; and they will be tormented day and night for ever and ever.

Revelation 21:20

the fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, topaz; the tenth, chrysoprasus; the eleventh, hyacinth; the twelfth, amethyst.

Treasury of Scripture Knowledge

Summary

And thus I saw the horses in the vision, and them that sat on them, having breastplates of fire, and of jacinth, and brimstone: and the heads of the horses were as the heads of lions; and out of their mouths issued fire and smoke and brimstone.

Bible References

Having

Revelation 9:9
And they had breastplates like breastplates of iron, and the sound of their wings was as the sound of chariots of many horses running to battle.

Jacinth

Revelation 21:20
the fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, topaz; the tenth, chrysoprasus; the eleventh, hyacinth; the twelfth, amethyst.

Brimstone

Revelation 9:18
By these three plagues was the third part of men killed, by the fire, and the smoke, and the brimstone, which issued out of their mouths.
Revelation 14:10
the same shall drink of the wine of the wrath of God, which is poured out without mixture into the cup of his indignation, and he shall be tormented with fire and brimstone in the presence of the angels, and in the presence of the Lamb.
Revelation 19:20
And the beast was seized and he who was with him, the false prophet who wrought the signs in his presence, with which he deceived those who received the mark of the beast, and who worshipped his image; the two were cast alive into the lake of fire burning with brimstone.
Revelation 21:8
But the cowardly, and unbelieving, and the polluted with abominations, and murderers, and fornicators, and sorcerers, and idolaters, and all the liars, shall have their part in the lake which burneth with fire and brimstone; which is the second death.