Commentaries:
The result of their interpretation of an imminent return of Christ was that some of the more excitable ones quit their jobs. His return was one of the important and recurring subjects of conversations with them. They added to that by becoming busybodies—spending their time talking excitedly but doing no work—and so their minds were continually disturbed, excited, by what they thought were signs of the imminent return of Jesus Christ. They were convinced that the Day of the Lord was already happening, and in a very short time Christ Himself would make His appearance.
John W. Ritenbaugh
A Place of Safety? (Part 4)
Other Forerunner Commentary entries containing 2 Thessalonians 3:7:
Matthew 10:9-10
1 Thessalonians 5:2-3