Revelation 4:8

And the four living creatures had each of them six wings about him; and they are full of eyes within; and they have no rest day and night, saying, Holy, holy, holy is the Lord God, the Almighty, who was, and is, and is to come.

Luke 1:10

And all the multitude of the people were praying without, at the time of incense.

Hebrews 1:7

And of the angels he says: Who makes his angels winds, 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 they fell on their faces before the throne, and worshiped God,

Revelation 8:13

And I saw, and heard an eagle, as he flew in mid-heaven, saying, with a loud voice, Woe, woe, woe to the inhabitants of the earth, because of the remaining voices of the trumpets of the three angels which are yet to sound.

Revelation 14:6

And I saw another angel flying in mid-heaven, having the eternal gospel to preach to those who dwell on the earth, even 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 time of incense.
Revelation 7:11
And all the angels stood round about the throne and the elders and the four living creatures; and they fell on their faces before the throne, and worshiped God,

Seraphims

Hebrews 1:7
And of the angels he says: Who makes his angels winds, and his ministers a flame of fire.

Wings

Revelation 4:8
And the four living creatures had each of them six wings about him; and they are full of eyes within; and they have no rest day and night, saying, Holy, holy, holy is the Lord God, the Almighty, who was, and is, and is to come.

Did fly

Revelation 8:13
And I saw, and heard an eagle, as he flew in mid-heaven, saying, with a loud voice, Woe, woe, woe to the inhabitants of the earth, because of the remaining voices of the trumpets of the three angels which are yet to sound.
Revelation 14:6
And I saw another angel flying in mid-heaven, having the eternal gospel to preach to those who dwell on the earth, even to every nation and tribe and tongue and people;