Partial Rapture?

Does any scripture say that there will be a partial rapture of the church, or that there will be multiple raptures of the church, or that there will be multiple future comings of Jesus? Doesn't the Bible say that "all" the saved, dead and living, will be resurrected and raptured up to meet Jesus at a single point in time, at the last trump at the 2nd coming of Jesus? "We shall ALL be changed, in a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed" (1 Corinthians 15:51-52); "We which are alive and remain unto the coming (parousia) of the Lord shall not prevent them which are asleep. 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: Then we which are alive and remain shall be caught up together with them in the clouds, to meet the Lord in the air" (1 Thessalonians 4:15-17).

Doesn't the Bible speak of only one more coming of Jesus, and of only one gathering of the church up to Jesus, which will happen on only one day, the same day on which the Antichrist is destroyed? "Now we beseech you, brethren, by the coming (parousia) of our Lord Jesus Christ, and by our gathering together unto him, That ye be not soon shaken in mind, or be troubled, neither by spirit, nor by word, nor by letter as from us, as that the day of Christ is at hand. Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition... whom the Lord shall consume with the spirit of his mouth, and shall destroy with the brightness of his coming (parousia)" (2 Thessalonians 2:1-3, 8).

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Overcomers

Note that overcomers must be faithful unto death in tribulation: "Fear none of those things which thou shalt suffer: behold, the devil shall cast some of you into prison, that ye may be tried; and ye shall have tribulation ten days: be thou faithful unto death, and I will give thee a crown of life. He that hath an ear, let him hear what the Spirit saith unto the churches; He that overcometh shall not be hurt of the second death" (Revelation 2:10-11); "They overcame him by the blood of the Lamb, and by the word of their testimony; and they loved not their lives unto the death" (Revelation 12:11).

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Individual Raptures?

Note that the Bible doesn't say our "catching up" (rapture) will happen to this or that individual at this or that different time, but that it will happen at "the coming of the Lord," when "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 4:15-16), that is, the 2nd coming and the resurrection of all the dead in Christ must happen before "we which are alive and remain shall be caught up (raptured) together with them in the clouds" (1 Thessalonians 4:17). Likewise, our changing into immortal bodies at the rapture doesn't happen to this or that individual at this or that different time, but "we shall all be changed, in a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed" (1 Corinthians 15:51-52).