Revelation 4:8

And the four living creatures having six wings, one opposite one of them; filled with eyes without and within; and they cease not day and night, saying; Holy, holy, holy, is the Lord God Omnipotent, who was, and who is, and who is the one coming.

Luke 1:10

and all the multitude of the people were praying without at the hour of incense;

Hebrews 1:7

And to the angels he says, he maketh his angels spirits, and his ministers a flame of fire:

Revelation 7:11

And all the angels stood round about the throne, and the elders, and the four living creatures, and fell down before the throne on their faces, and worshiped God,

Revelation 8:13

And I saw, and I heard one eagle flying in the midst of heaven, saying with a great voice; Woe, woe, woe, to those dwelling upon the earth, on account of the other voices of the trumpet of the three angels, who are about to sound.

Revelation 14:6

And I saw another angel flying in the midst of heaven having the eternal gospel to preach to those dwelling upon the earth, and to every nation, and tribe, and tongue, and people,

Treasury of Scripture Knowledge

Summary

Above it stood the seraphims: each one had six wings; with twain he covered his face, and with twain he covered his feet, and with twain he did fly.

Seraphims

Bible References

Stood

Luke 1:10
and all the multitude of the people were praying without at the hour of incense;
Revelation 7:11
And all the angels stood round about the throne, and the elders, and the four living creatures, and fell down before the throne on their faces, and worshiped God,

Seraphims

Hebrews 1:7
And to the angels he says, he maketh his angels spirits, and his ministers a flame of fire:

Wings

Revelation 4:8
And the four living creatures having six wings, one opposite one of them; filled with eyes without and within; and they cease not day and night, saying; Holy, holy, holy, is the Lord God Omnipotent, who was, and who is, and who is the one coming.

Did fly

Revelation 8:13
And I saw, and I heard one eagle flying in the midst of heaven, saying with a great voice; Woe, woe, woe, to those dwelling upon the earth, on account of the other voices of the trumpet of the three angels, who are about to sound.
Revelation 14:6
And I saw another angel flying in the midst of heaven having the eternal gospel to preach to those dwelling upon the earth, and to every nation, and tribe, and tongue, and people,