¹ sn The relationship of the phrase keep on walking to if we say is very important for understanding the problem expressed in 1:6. If one should say (εἴπωμεν, eipwmen) that he has fellowship with God, and yet continues walking (περιπατῶμεν, peripatwmen) in the darkness, then it follows (in the apodosis, the “then” clause) that he is lying and not practicing the truth.