Revelation 15:2

Then I saw something that looked like a sea of glass mixed with fire, and standing upon the sea of glass were those who had conquered the wild beast, his statue, and the number representing his name; and they had harps that God had given them.

Revelation 4:6

Also in front of the throne there was something like a sea of glass as clear as crystal. Around the throne, at the middle of each side were four living creatures dotted with eyes in front and behind,

Revelation 5:8

When He took it, the four living creatures and the twenty-four elders fell down before the Lamb, each with a harp, and golden bowls that were full of incense, which represent the prayers of God's people.

Revelation 12:11

But they have conquered him because of the blood of the Lamb and because of the message to which they bore testimony, because they did not cling to life but courted death.

Revelation 21:18

The material of its wall was jasper, but the city itself was pure gold, as transparent as glass.

Matthew 3:11

I am baptizing you in water to picture your repentance. But He that is coming after me is stronger than I am, and I am not fit to carry His shoes. He will baptize you in the Holy Spirit and in fire;

1 Peter 1:7

so that the genuineness of your faith, which is more precious than gold that perishes even after it is shown by the test of fire to be genuine, may result in your praise and glory and honor at the unveiling of Jesus Christ.

1 Peter 4:12

Dearly beloved, do not be astonished that a test by fire is coming upon you, as though something strange were happening to you,

Revelation 11:11-12

After three days and a half the breath of life from God came into them again, and they stood on their feet, and consternation seized those who saw them.

Revelation 13:14-5

He leads the inhabitants of the earth astray because of the wonders he is permitted to perform in the presence of the wild beast, telling the inhabitants of the earth to erect a statue to the wild beast that bears the sword-thrust and yet has lived.

Revelation 19:1-7

After this I heard something like the loud shout of a great multitude in heaven, saying: "Praise the Lord! Salvation, glory, and 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
Also in front of the throne there was something like a sea of glass as clear as crystal. Around the throne, at the middle of each side were four living creatures dotted with eyes in front and behind,
Revelation 21:18
The material of its wall was jasper, but the city itself was pure gold, as transparent as glass.

Mingled

Matthew 3:11
I am baptizing you in water to picture your repentance. But He that is coming after me is stronger than I am, and I am not fit to carry His shoes. He will baptize you in the Holy Spirit and in fire;
1 Peter 1:7
so that the genuineness of your faith, which is more precious than gold that perishes even after it is shown by the test of fire to be genuine, may result in your praise and glory and honor at the unveiling of Jesus Christ.
1 Peter 4:12
Dearly beloved, do not be astonished that a test by fire is coming upon you, as though something strange were happening to you,

That had

Revelation 11:11
After three days and a half the breath of life from God came into them again, and they stood on their feet, and consternation seized those who saw them.
Revelation 12:11
But they have conquered him because of the blood of the Lamb and because of the message to which they bore testimony, because they did not cling to life but courted death.
Revelation 13:14
He leads the inhabitants of the earth astray because of the wonders he is permitted to perform in the presence of the wild beast, telling the inhabitants of the earth to erect a statue to the wild beast that bears the sword-thrust and yet has lived.
Revelation 14:1
Then I looked, and there the Lamb was standing on Mount Zion, and with Him one hundred and forty-four thousand people who had His name and the name of His Father written on their foreheads.

Having

Revelation 5:8
When He took it, the four living creatures and the twenty-four elders fell down before the Lamb, each with a harp, and golden bowls that were full of incense, which represent the prayers of God's people.
Revelation 14:2
And I heard a sound from heaven like the roar of great waters and the rumbling of loud thunders. The sound that I heard was like that of harpists playing on their harps.
Revelation 19:1
After this I heard something like the loud shout of a great multitude in heaven, saying: "Praise the Lord! Salvation, glory, and power belong to our God,