2 Thess 2:7

2:7 already at work. Though the man of lawlessness has not yet appeared, Paul will not allow his readers to let down their guard. The same satanic power that will ultimately spawn this unholy deceiver was already at work in Paul’s day (1 John 2:18) and is at work in ours. Because it is now restrained, the church has a strong encouragement to carry out its mission.