Revelation 15:2

And I saw as a glass sea, mingled with fire, and those that had gained the victory over the beast, and over its image, and over the number of its name, standing upon the glass sea, having harps of God.

Revelation 4:6

and before the throne, as a glass sea, like crystal. And in the midst of the throne, and around the throne, four living creatures, full of eyes, before and behind;

Revelation 5:8

And when it took the book, the four living creatures and the twenty-four elders fell before the Lamb, having each a harp and golden bowls full of incenses, which are the prayers of the saints.

Revelation 12:11

and they have overcome him by reason of the blood of the Lamb, and by reason of the word of their testimony, and have not loved their life even unto death.

Revelation 21:18

And the building of its wall was jasper; and the city pure gold, like pure glass:

Isaiah 4:4-5

when the Lord shall have washed away the filth of the daughters of Zion, and shall have scoured out the blood of Jerusalem from its midst, by the spirit of judgment, and by the spirit of burning.

Ezekiel 22:30-31

And I sought for a man among them, that should make up the fence, and stand in the breach before me for the land, that I should not destroy it; but I found none.

Matthew 3:11

I indeed baptise you with water to repentance, but he that comes after me is mightier than I, whose sandals I am not fit to bear; he shall baptise you with the Holy Spirit and fire;

1 Peter 1:7

that the proving of your faith, much more precious than of gold which perishes, though it be proved by fire, be found to praise and glory and honour in the revelation of Jesus Christ:

1 Peter 4:12

Beloved, take not as strange the fire of persecution which has taken place amongst you for your trial, as if a strange thing was happening to you;

Revelation 11:11-12

And after the three days and a half the spirit of life from God came into them, and they stood upon their feet; and great fear fell upon those beholding them.

Revelation 13:14-5

And it deceives those that dwell upon the earth by reason of the signs which it was given to it to work before the beast, saying to those that dwell upon the earth to make an image to the beast, which has the wound of the sword, and lived.

Revelation 19:1-7

After these things I heard as a loud voice of a great multitude in the heaven, saying, Hallelujah: the salvation and the glory and the power of our God:

Treasury of Scripture Knowledge

Summary

And I saw as it were a sea of glass mingled with fire: and them that had gotten the victory over the beast, and over his image, and over his mark, and over the number of his name, stand on the sea of glass, having the harps of God.

Bible References

A sea

Revelation 4:6
and before the throne, as a glass sea, like crystal. And in the midst of the throne, and around the throne, four living creatures, full of eyes, before and behind;
Revelation 21:18
And the building of its wall was jasper; and the city pure gold, like pure glass:

Mingled

Isaiah 4:4
when the Lord shall have washed away the filth of the daughters of Zion, and shall have scoured out the blood of Jerusalem from its midst, by the spirit of judgment, and by the spirit of burning.
Matthew 3:11
I indeed baptise you with water to repentance, but he that comes after me is mightier than I, whose sandals I am not fit to bear; he shall baptise you with the Holy Spirit and fire;
1 Peter 1:7
that the proving of your faith, much more precious than of gold which perishes, though it be proved by fire, be found to praise and glory and honour in the revelation of Jesus Christ:
1 Peter 4:12
Beloved, take not as strange the fire of persecution which has taken place amongst you for your trial, as if a strange thing was happening to you;

That had

Revelation 11:11
And after the three days and a half the spirit of life from God came into them, and they stood upon their feet; and great fear fell upon those beholding them.
Revelation 12:11
and they have overcome him by reason of the blood of the Lamb, and by reason of the word of their testimony, and have not loved their life even unto death.
Revelation 13:14
And it deceives those that dwell upon the earth by reason of the signs which it was given to it to work before the beast, saying to those that dwell upon the earth to make an image to the beast, which has the wound of the sword, and lived.
Revelation 14:1
And I saw, and behold, the Lamb standing upon mount Zion, and with him a hundred and forty-four thousand, having his name and the name of his Father written upon their foreheads.

Stand

Ezekiel 22:30
And I sought for a man among them, that should make up the fence, and stand in the breach before me for the land, that I should not destroy it; but I found none.

Having

Revelation 5:8
And when it took the book, the four living creatures and the twenty-four elders fell before the Lamb, having each a harp and golden bowls full of incenses, which are the prayers of the saints.
Revelation 14:2
And I heard a voice out of the heaven as a voice of many waters, and as a voice of great thunder. And the voice which I heard was as of harp-singers harping with their harps;
Revelation 19:1
After these things I heard as a loud voice of a great multitude in the heaven, saying, Hallelujah: the salvation and the glory and the power of our God: