You are witnesses with God, how holy, righteously, and blamelessly we behaved ourselves toward you who believe.

 (i) He speaks of Satan blocking his way when he desired to come to Thessalonica. The word he uses (egkoptein, G1465) is the technical word for putting up a road-block calculated to stop an expedition on the march. It is Satan's work to throw obstacles into the Christian's way--and it is our work to surmount them. 