1 Thessalonians 3:3-5 WEB

3 that no one be moved by these afflictions. For you know that we are appointed to this task.
4 For most assuredly, when we were with you, we told you beforehand that we are to suffer affliction, even as it happened, and you know.
5 For this cause I also, when I couldn't stand it any longer, sent that I might know your faith, for fear that by any means the tempter had tempted you, and our labor would have been in vain.