“And I saw another angel ascending from the east, having the seal of the living God: and he cried with a loud voice to the four angels, to whom it was given to hurt the earth and the sea,”
King James Version (KJV)
7:2 And I saw another (a good) angel ascending from the east - The plagues begin in the east; so does the sealing. Having the seal of the only living and true God: and he cried with a loud voice to the four angels - Who were hasting to execute their charge. To whom it was given to hurt the earth and the sea - First, and afterwards the trees.
Re 7:2 I saw another angel . . . having the seal of the living God. The picture is that of an angel having the seal of the living God. The object of this seal is indicated in Re 7:3. The seal was a mark of ownership. The seal of God on the forehead would mark those sealed at God's. The seal mark on the forehead would be visible to everyone; hence the seal in the forehead has been understood to be the public confession and profession of Christ. This angel would thus symbolize a great and successful movement to evangelize the race.