There are three theories as to when the rapture will occur, before the tribulation (seven years when God allows man to rule by violence and oppression), in the middle of the tribulation, and after the tribulation.
While the rapture of the church is anticipated by Christians all over the world there is a great deal of confusion about it, both by believers and those who reject Christ. Yet, it is vital that you understand it right now.
“And the fourth kingdom shall be as strong as iron, inasmuch as iron breaks in pieces and shatters all things; and like iron that crushes, that kingdom will break in pieces and crush all the others.” Daniel 2:40.
“Now in the second year of Nebuchadnezzar’s reign, Nebuchadnezzar had dreams; and his spirit was so troubled that his sleep left him. Then the king gave the command to call the magicians, the astrologers, the sorcerers, and the Chaldeans to tell the king his dreams. So they came and stood before the king. And the king said to them, ‘I have had a dream, and my spirit is anxious to know the dream.’ Then the Chaldeans spoke to the king in Aramaic, ‘O king, live forever! Tell your servants the dream, and we will give the interpretation.’ But the king answered and said to the Chaldeans, ‘My decision is firm: if you do not make known the dream to me, and its interpretation, you shall be cut in pieces, and your houses shall be made an ash heap. However, if you tell the dream and its interpretation, you shall receive from me gifts, rewards, and great honor. Therefore tell me the dream and its interpretation.’ They answered again and said, ‘Let the king tell his servants the dream, and we will give its interpretation.’ The king answered and said, ‘I know for certain that you would gain time, because you see that my decision is firm: if you do not make known the dream to me, there is only one decree for you! For you have agreed to speak lying and corrupt words before me till the time has changed. Therefore tell me the dream, and I shall know that you can give me its interpretation.’ The Chaldeans answered the king, and said, ‘There is not a man on earth who can tell the king’s matter; therefore no king, lord, or ruler has ever asked such things of any magician, astrologer, or Chaldean. It is a difficult thing that the king requires, and there is no other who can tell it to the king except the gods, whose dwelling is not with flesh.’ For this reason the king was angry and very furious, and gave a command to destroy all the wise men of Babylon. So the decree went out, and they began killing the wise men; and they sought Daniel and his companions, to kill them.” Daniel 2:1-13.