The pagan world in Paul’s day had no hope of life after death. A typical inscription on a grave demonstrates this fact: I was not: I became: I am not: I care not.
While some of the philosophers, such as Socrates, sought to prove happiness after death, the pagan world had no word of assurance.
The believers in Thessalonica were concerned about their loved ones who had died. What if the Lord should return? Would their deceased loved ones be handicapped in any way? Paul clears up their concerns by telling them we will all meet the Lord and what’s more important, is that we should be prepared for Jesus’ return because he will come like a thief in the night. So be prepared by being expectant, by being equipped and by being encouraged that Jesus will certainly return.
1 Thessalonians 5:4-5 But you, brothers and sisters, are not in darkness so that this day should surprise you like a thief. You are all children of the light and children of the day……