Dear Sandravig:

The concept of "rapture" did not exist until around 1830. John Nelson Darby began to work out his notion around 1827. In 1830 he began to preach it. This was the beginning of the man-made notion of "dispensationalism" and the idea of "rapture" (left behind postulation). As it is said, "the rest is history." Before this time, this errant and novel man-made doctrine did not exist.

Like all modern inventions of doctrine, it is wrong.

Jesus does not have "three" comings (i.e., 2000 years ago, the rapture, and third, err second coming).

The so-called rapture is actually the Second Coming, the Parousa (Greek: παρουσία — coming). These references are not left-behind references, but references of judgment. Those who accepted God's grace were saved, those who did not perished. This is what happens at the Final Judgement (Great White Throne Judgement) — those Christ are resurrected and reunited with their souls, the damned are resurrected and reunited with their souls, and each goes to their respective destinations.

Those alive at the second coming meet Christ in the clouds and are transformed and enter heaven. Those who are alive and damned at the second coming are transformed into whatever condition their bodies and souls will be will enter hell.

It is at the second coming, the dead in Christ are bodily resurrected, those alive in Christ at the time meet Christ in the air (this is where the Protestants get misinterpret and get their "rapture".

1 Thessalonians 4:15-17 "For this we declare to you by the word of the Lord, that we who are alive, who are left until the coming [parousa] of the Lord, shall not precede those who have fallen asleep. For the Lord himself will descend from heaven with a cry of command, with the archangel’s call, and with the sound of the trumpet of God. And the dead in Christ will rise first; then we who are alive, who are left, shall be caught up together with them in the clouds to meet the Lord in the air; and so we shall always be with the Lord."

As the Navarre Bible Commentary (one of the best) states:

[Here St. Paul] does not explicitly speak about the general resuurection; he refers only to those who die "in Christ". He distinguishes two groups as regards the situation people find themselves in at our Lord's second coming — 1) those who are alive: these will be "caught up", that is, changed (cf. 1 Cor 15:51;  2 Cor 5:2-4) by the power of God and will change from being corruptible and mortal to being incorruptible and immortal; 2) those who have already died: these will rise again.

You can find a list of articles of Catholic Refutations of the Rapture, compiled by Dave Armstrong, here.

I hope this helps.

God Bless,
Bro. Ignatius Mary