“Then I looked, and behold, a white cloud, and on the cloud sat One like the Son of Man, having on His head a golden crown, and in His hand a sharp sickle. And another angel came out of the temple, crying with a loud voice to Him who sat on the cloud, ‘Thrust in Your sickle and reap, for the time has come for You to reap, for the harvest of the earth is ripe.’ So He who sat on the cloud thrust in His sickle on the earth, and the earth was reaped.” Revelation 14:14-16.
“Then another angel came out of the temple which is in heaven, he also having a sharp sickle. And another angel came out from the altar, who had power over fire, and he cried with a loud cry to him who had the sharp sickle, saying, ‘Thrust in your sharp sickle and gather the clusters of the vine of the earth, for her grapes are fully ripe.’” Revelation 14:17-18.
“Then I saw another angel flying in the midst of heaven, having the everlasting gospel to preach to those who dwell on the earth – to every nation, tribe, tongue, and people – saying with a loud voice, ‘Fear God and give glory to Him, for the hour of His judgment has come; and worship Him who made heaven and earth, the sea and springs of water.’” Revelation 14:6-7.
“And I looked, and behold, the Lamb was standing on Mount Zion, and with Him one hundred and forty-four thousand, having His name and the name of His Father written on their foreheads.” Revelation 14:1, New American Standard Version.
“Then I saw another beast coming up out of the earth, and he had two horns like a lamb and spoke like a dragon.” Revelation 13:11.
Just as we have had a beast rising up out of the sea in Revelation 13:1, so now we have one coming up out of the earth. If the sea represents the Gentile nations, then the earth has to mean something different. There are two plausible theories.