And he is the atoning sacrifice{"atoning sacrifice" is from the Greek "hilasmos," an appeasing, propitiating, or the means of appeasement or propitiation-- the sacrifice that turns away God's wrath because of our sin.} for our sins, and not for ours only, but also for the whole world.

 John says that he who denies the Son has not the Father either. What lies behind that saying is this. The false teachers pleaded, "It may be that we have different ideas from yours about Jesus; but you and we do believe the same things about God." John's answer is that that is an impossible position; no man can deny the Son and still have the Father. How does he arrive at this view? 