From Paul, Silvanus, and Timothy to the church in Thessalonica. (1:1)
First Thessalonians is the earliest of the Paul's undisputed epistles. It is thought by many scholars to be the oldest surviving Christian document. It was written to the church in Thessalonica in about 49 CE. Thessalonica was a major port city in Macedonia (modern-day Greece).
Silvanus (aka Silas) and Timothy were companions of Paul on his second missionary journey. They were with Paul when he visited Thessalonica, but they probably were not really co-authors of this epistle.
Every man should know how to possess his vessel in holiness and honor. (4:4)
The "vessel" that Paul is talking about here is either a man's wife or his penis.
When Jesus returns, he'll bring dead believers with him. (4:14)
First Thessalonians was one of the first Christian writings, yet already (ca.50 CE) believers were getting impatient about Jesus' supposed return. Their fellow believers were dying and yet Jesus still hadn't come. What happens to dead believers? Will they get to see Jesus return?
Jesus will descend with a shout, with the voice of an archangel. (4:16)
Jehovah's Witnesses: From this verse and Jude 9, the Jehovah's Witnesses figure that Jesus is really the archangel Michael.
In the podcast, Carole asked how many archangels are there in the Bible, and I said two: Gabriel and Michael. And that's true, for Protestants anyway. Another archangel, Raphael, is main character in the book of Tobit, which is in Catholic bibles, but is considered apocryphal to Protestants.
A trumpet will sound. (4:16)
Donald Trump is the trump of God -- or so says World Net Daily, anyway. Donald Trump is God's final warning to America.
Then those of us who are alive will be raised up into the clouds to meet Jesus in the air and be with him forever. (4:17)
Modern Evangelical Christians get the idea of the rapture from this verse. (Paul thought he'd live to see it.)