Revelation 14:14 And I looked, and behold a white cloud, and upon the cloud one sat like unto the Son of man, having on his head a golden crown, and in his hand a sharp sickle.
15 And another angel came out of the temple, crying with a loud voice to him that sat on the cloud, Thrust in thy sickle, and reap: for the time is come for thee to reap; for the harvest of the earth is ripe.
16 And he that sat on the cloud thrust in his sickle on the earth; and the earth was reaped.
The person sitting on this cloud is Jesus with a crown on his head showing is ruler of this world. The sickle He holds in his hand is to reap the Christians from the earth before the tribulation. This is the first judgement of God when he calls His children home. At the second coming of Christ when He steps foot on the the earth will be the next judgement when all that worship the beast will be judged. Again it is going to be awesome to go when that trumpet blows and not have to face the tribulation.