The pre-Trib Rapture is the event in which Christ returns to the earth but stays in the air and on a cloud. He will return to remove all His saints/overcomers from the earth. The Second Coming (the Second Advent) is the event in which Christ returns to the earth (with the clouds – with His Host of raptured saints/the armies of Heaven). He will return to bring the Tribulation Period to an end by defeating the Antichrist and his evil world empire in the Battle of Armageddon.
When the apostle Paul says believers are not meant to go through God’s Orge (Wrath), the apostle Paul means exactly that. God allowed His Son to experience His Orge and Thumos, which He poured out against sin and evil—He allowed Jesus the Christ to be beaten beyond recognition, crucified on a Cross, and resurrected from the grave just so that the Lord’s Bride, every saved and justified believer who is allowing God’s Holy Spirit to change him and her from the inside out, until he or she becomes like Christ Jesus, would be SAVED from all of the Wrath (Orge) to come.