'Cloud' in the Bible

Then I saw another mighty angel coming down from heaven, surrounded by a cloud, with a rainbow over his head. His face was like the sun, his legs were like fiery pillars,

Then they heard a loud voice from heaven saying to them, “Come up here.” They went up to heaven in a cloud, while their enemies watched them.

Then I looked, and there was a white cloud, and One like the Son of Man was seated on the cloud, with a gold crown on His head and a sharp sickle in His hand.

Another angel came out of the sanctuary, crying out in a loud voice to the One who was seated on the cloud, “Use your sickle and reap, for the time to reap has come, since the harvest of the earth is ripe.”

So the One seated on the cloud swung His sickle over the earth, and the earth was harvested.