Matthew 13:37-43 NIV
He answered, "The one who sowed the good seed is the Son of Man. The field is the world, and the good seed stands for the people of the kingdom. The weeds are the people of the evil one, and the enemy who sows them is the devil. The harvest is the end of the age, and the harvesters are angels. "As the weeds are pulled up and burned in the fire, so it will be at the end of the age. The Son of Man will send out his angels, and they will weed out of his kingdom everything that causes sin and all who do evil. They will throw them into the blazing furnace, where there will be weeping and gnashing of teeth. Then the righteous will shine like the sun in the kingdom of their Father. Whoever has ears, let them hear.
Revelation 14:14-16 NIV
I looked, and there before me was a white cloud, and seated on the cloud was one like a son of man with a crown of gold on his head and a sharp sickle in his hand. Then another angel came out of the temple and called in a loud voice to him who was sitting on the cloud, "Take your sickle and reap, because the time to reap has come, for the harvest of the earth is ripe." So he who was seated on the cloud swung his sickle over the earth, and the earth was harvested.
1 Thessalonians 4:15-18 NIV
According to the Lord's word, we tell you that we who are still alive, who are left until the coming of the Lord, will certainly not precede those who have fallen asleep. For the Lord himself will come down from heaven, with a loud command, with the voice of the archangel and with the trumpet call of God, and the dead in Christ will rise first. After that, we who are still alive and are left will be caught up together with them in the clouds to meet the Lord in the air. And so we will be with the Lord forever. Therefore encourage one another with these words.
The rapture or catching away is a harvest of gods people. You will see the above scripture in revelation. It does not say caught up but it is a description of the rapture. You have seen christians reffered to as the bride of christ. The rapture is christ returning for his bride. After the rapture you will see in revelation about the marriage supper of the lamb. This takes place aftee the rapture and before the second coming.
Revelation 19:7-9 NIV
Let us rejoice and be glad
and give him glory!
For the wedding of the Lamb has come,
and his bride has made herself ready. Fine linen, bright and clean,
was given her to wear."
(Fine linen stands for the righteous acts of God's holy people.) Then the angel said to me, "Write this: Blessed are those who are invited to the wedding supper of the Lamb!" And he added, "These are the true words of God."