Revelation 7:1–4 contains another highly symbolic vision from John’s vision. Four angels stand at the extreme points of the earth. He sees another angel ascend from the rising sun and hears him command the four angels to withhold further judgments until he has sealed God’s servants on their foreheads. The number of those sealed by this angel is 144,000. This event comes as an interlude between the opening of the sixth and seventh seal judgments. God is preparing to send His servants into the known world to proclaim the gospel of the kingdom.
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“Revelation 7:3” Bibleref.com
2 I saw another angel ascend from the sunrise, having the seal of the living God. He cried with a loud voice to the four angels to whom it was given to harm the earth and the sea, 3 saying, “Don’t harm the earth, the sea, or the trees, until we have sealed the bondservants of our God on their foreheads!”