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.

For what is [the basis of] our hope, or joy, or crown of honor in the presence of the Lord Jesus when He comes back? [Note: By "crown" Paul alludes to the laurel wreath awarded to the victor in an athletic contest]. Will it not be you people?

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],

For even when we were with you, we warned you that we were going to be persecuted, and as you know, it has turned out that way.

[So], for this reason, when I could not stand it any longer, I also sent [Timothy] to find out about your faith. I was afraid that somehow the tempter [i.e., Satan] had tempted you [to give up] and that our work [on your behalf] will have become useless.

May the Lord strengthen your hearts so you will be [found] without just blame and holy, in the presence of our God and Father, when our Lord Jesus Christ returns with all of His holy ones [i.e., angels. See Mark 8:38; II Thess. 1:7].

For we say this to you by [the authority of] the word of the Lord [Note: Paul was either quoting what Jesus had previously said, or was giving a revelation he had received from the Lord. See I Cor. 14:37], that we [Christians] who are [still] alive, who are left [on earth] when the Lord returns, will certainly not precede those who have fallen asleep. [Note: The point Paul is making is that the living will not be "changed" (I Cor. 15:51-52) and taken to heaven before the dead are raised].

for you know perfectly well that the day of the Lord [i.e., when He returns, See II Thess. 2:1-2] will arrive like a thief coming in the night.

[For] when people are saying, "Peace," and "Safety," then [is when] destruction will come upon them suddenly, like labor pains on a pregnant woman, and they will not be able to escape it.