God is love. In 1 John 4.7-21 it becomes clear that to have fellowship with God means that we must love one another. God showed His love for us in that while we were still sinners, Christ died for us. The cross is where we find the fullest expression of the love of God. Yet if we truly grasp the love of God seen at Calvary, we have to ask why? Why was this sacrifice necessary to show the love of God to us. The answer is that God is also light. He is pure, holy, and just. Injustice and unholiness cannot stand in his presence, yet as sinners we were apart from Him. His holiness demands that we be cast out of His presence, but His love demands that we be brought in. So He took the initiative and sent His Son into the world so that we might live. “Beloved, if God has loved us in this way, we also ought to love one another."