Behold I tell you a mystery 1 Corinthians 15:51

Behold, I tell you a mystery: We shall not all sleep, but we shall all be changed--In a moment in the twinkling of an eye. For our For our Lord, Himself shall descend from heaven with a mighty shout, with the voice of an arch angel and the last trumpet of God. And the dead will be raised incorruptible, and we who are alive and remain, shall all be changed. And be caught up together in the sky and so we shall always be the our Lord Jesus Christ. For our corruptible bodies must be changed to incorruptible ones and our mortal bodies must put on their immortal ones. "For flesh and blood cannot inherit the kingdom of God in heaven for during the seven year's tribulation on earth." His saints shall be safeguarded and protected there.