The typical rapture description is here, 1 Thessalonians 4
v15 Notice this is the coming of the Lord, which is the second coming. Both letters to the Thessalonians have a central theme, which is the returning of Christ a second time, and what will happen around that time.
v16, this is not a secret coming, there are shouts, voice of a loud angel, trumpets, so an announcement. The Trumpet signifies what exactly? Used in war, it is meant for
ALL to hear, both friend and foe alike.
The Comfort of Christ’s Coming
13 But I do not want you to be ignorant, brethren, concerning those who have fallen asleep, lest you sorrow as others who have no hope. 14 For if we believe that Jesus died and rose again, even so God will bring with Him those who sleep in Jesus.
15 For this we say to you by the word of the Lord, that we who are alive and remain until the coming of the Lord will by no means precede those who are asleep. 16 For the Lord Himself will descend from heaven with a shout, with the voice of an archangel, and with the trumpet of God. And the dead in Christ will rise first. 17 Then we who are alive and remain shall be caught up together with them in the clouds to meet the Lord in the air. And thus we shall always be with the Lord. 18 Therefore comfort one another with these words.
"that we who are alive and remain until the coming of the Lord"
there will be some believers still alive at the end of the tribulation period, and when Christ returns for the church , it means OUR SALVATION, from the troubles of that time.
Example, Hebrews 9
26 He then would have had to suffer often since the foundation of the world; but now, once at the end of the ages, He has appeared to put away sin by the sacrifice of Himself. 27 And as it is appointed for men to die once, but after this the judgment, 28 so Christ was offered once to bear the sins of many. To those who eagerly wait for Him He will appear a second time, apart from sin, for salvation.
Example, 1 Peter 1
3 Blessed be the God and Father of our Lord Jesus Christ, who according to His abundant mercy has begotten us again to a living hope through the resurrection of Jesus Christ from the dead, 4 to an inheritance incorruptible and undefiled and that does not fade away, reserved in heaven for you, 5 who are kept by the power of God through faith for salvation ready to be revealed in the last time.