1 Thessalonians 4:16 For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God: and the dead in Christ shall rise first: 1 Thessalonians 4:17 Then we which are alive and remain shall be caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord. From these verses you see that the rapture happens at the time of the resurection of the righteous. The scriptures tell when the resurection of the righteous is--"last day"; and not 7 years before the last day. John 11:23 Jesus saith unto her, Thy brother shall rise again. John 11:24 Martha saith unto him, I know that he shall rise again in the resurrection at the last day. So you see, the rapture is plainly a post tribulation rapture to happen at the last day of the age when Jesus returns.