2 Thessalonians 2

"stand firm and hold to the teachings we passed on to you"

I remember in the 1970s there was a great deal of teaching in Christianity that the end of time was near. Books that taught Jesus' return was imminent like "The Late Great Planet Earth" were best sellers. Many people spent enormous amounts of time trying to interrupt the signs in the book of Revelation. I think Paul is writing to the Thessalonians in such a time. People are looking for signs. They are wondering when Christ will return. Paul, in essence, tells them to settle down. Their task is to hold on to their faith. Christ will return at the right moment, until then just live a faithful life.