Revelation 15:2

And I saw as it were a sea of glass mingled with fire, and those who had gained the victory over the beast, and over his image, and over the number of his name, standing at the sea of glass, having harps of God.

Revelation 4:6

and before the throne there was as it were a sea of glass like to crystal; and in the middle before the throne, and around the throne, were four living creatures full of eyes before and behind.

Revelation 5:8

And when he had taken the book, the four living creatures and the twentyfour elders fell down before the Lamb, having each one a harp, and golden bowls full of incense, which are the prayers of the saints.

Revelation 12:11

and they conquered him because of the blood of the Lamb, and because of the word of their testimony; and they loved not their lives, even to death.

Revelation 21:18

And the material of its wall was jasper; and the city was of pure gold, like to clear glass.

Matthew 3:11

I indeed baptize you in water, for repentance; but he that cometh after me is mightier than I, whose sandals I am not worthy to bear; he will baptize you in the Holy Spirit and in fire.

1 Peter 1:7

that the proof of your faith, much more precious than gold which perisheth, but is tried with fire, may be found unto praise and glory and honor at the manifestation of Jesus Christ;

1 Peter 4:12

Beloved, be not surprised at the fiery trial which is taking place among you to prove you, as though a strange thing were befalling you;

Revelation 11:11-12

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

Revelation 13:14-5

And he deceiveth them that dwell on the earth, by reason of the signs which it was given him to do in the presence of the beast; commanding those who dwell on the earth to make an image to the beast which had the wound by a sword, and lived.

Revelation 19:1-7

After these things I heard as it were a loud voice of a great multitude in heaven, saying, Hallelujah I The salvation, and the glory, and the power, belong to 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 there was as it were a sea of glass like to crystal; and in the middle before the throne, and around the throne, were four living creatures full of eyes before and behind.
Revelation 21:18
And the material of its wall was jasper; and the city was of pure gold, like to clear glass.

Mingled

Matthew 3:11
I indeed baptize you in water, for repentance; but he that cometh after me is mightier than I, whose sandals I am not worthy to bear; he will baptize you in the Holy Spirit and in fire.
1 Peter 1:7
that the proof of your faith, much more precious than gold which perisheth, but is tried with fire, may be found unto praise and glory and honor at the manifestation of Jesus Christ;
1 Peter 4:12
Beloved, be not surprised at the fiery trial which is taking place among you to prove you, as though a strange thing were befalling you;

That had

Revelation 11:11
And after three days and a half the spirit of life from God entered into them, and they stood upon their feet; and great fear fell upon those who saw them.
Revelation 12:11
and they conquered him because of the blood of the Lamb, and because of the word of their testimony; and they loved not their lives, even to death.
Revelation 13:14
And he deceiveth them that dwell on the earth, by reason of the signs which it was given him to do in the presence of the beast; commanding those who dwell on the earth to make an image to the beast which had the wound by a sword, and lived.
Revelation 14:1
And I saw, and lo! the Lamb stood on Mount Zion, and with him a hundred and fortyfour thousand, having his name and the name of his Father written on their foreheads.

Having

Revelation 5:8
And when he had taken the book, the four living creatures and the twentyfour elders fell down before the Lamb, having each one a harp, and golden bowls full of incense, which are the prayers of the saints.
Revelation 14:2
And I heard a voice from heaven, as the voice of many waters, and as the voice of loud thunder; and the voice which I heard was as that of harpers, harping with their harps.
Revelation 19:1
After these things I heard as it were a loud voice of a great multitude in heaven, saying, Hallelujah I The salvation, and the glory, and the power, belong to our God;