[This letter is from] Paul, and Silvanus and Timothy, [and is being sent] to the church of the Thessalonians [Note: This was a town in present-day northeastern Greece] in [fellowship with] God, the Father and the Lord Jesus Christ. May God's unearned favor and peace be upon you.

And because of this we also thank God continually that, when you people received the message of God, which you heard from us, you did not accept it as a message from [mere] human beings, but as it truly is, the message from God, which is at work in you believers.

But brothers, after we were separated from you for a short time --- in person but not in spirit --- we became all the more eager [to come to you] and strongly desired to see you in person. [Note: The word "separated" here denotes the traumatic experience of a child being forcibly removed from its parents. It had been about six months since Paul left Thessalonica under adverse circumstances].

So, when we could not stand it any longer [Note: Paul's concern for the spiritual well-being of the Thessalonian Christians became unbearable], we [i.e., I, See verse 5] thought it best to be left behind, alone, at Athens [Note: Paul was willing to labor alone at Athens, so he could send his fellow-workers to minister to others. See Acts 17],

But, since we belong to the daytime [i.e., are enlightened], we should be sober. We should put on the "flack jacket" of faith and love, and for a helmet, the hope of being saved.