7:2 {3} And I saw {4} 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,
(3) Now God provides against the danger of his elect, by his commandment Re 7:2,3, and by sign or figure, both for those of the nation of the Jews and also for the Gentiles Re 7:9.
(4) Not only another, or differing number from the common angels of God, but also in essence, office and operation exceeding all angels: that is, Christ Jesus the eternal angel or Word of God, and mediator of the covenant, see Re 8:3,10:1,5.
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.
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.
7:1-8 In the figurative language of Scripture, the blowing of the four winds together, means a dreadful and general destruction. But the destruction is delayed. Seals were used to mark for each person his own possessions. This mark is the witness of the Holy Ghost, printed in the hearts of believers. And the Lord would not suffer his people to be afflicted before they were marked, that they might be prepared against all conflicts. And, observe, of those who are thus sealed by the Spirit, the seal must be on the forehead, plainly to be seen alike by friends and foes, but not by the believer himself, except as he looks stedfastly in the glass of God's word. The number of those who were sealed, may be understood to stand for the remnant of people which God reserved. Though the church of God is but a little flock, in comparison with the wicked world, yet it is a society really large, and to be still more enlarged. Here the universal church is figured under the type of Israel.