Here, I. The apostle, having supposed that even those of this heavenly communion have yet their sin, proceeds here to justify that supposition, and this he does by showing the dreadful consequences of denying it, and that in two particulars:—1. If we say, We have no sin, we deceive ourselves, and the truth is not in us , 1 John 1:8. We must beware of deceiving ourselves in denying or excusing our ...