So the crowd answered him, “We have heard from the Law that the Christ remains forever. How can you say that the Son of Man must be lifted up? Who is this Son of Man?” 35 So Jesus said to them, “The light is among you for a little while longer. Walk while you have the light, lest darkness overtake you. The one who walks in the darkness does not know where he is going. 36 While you have the light, believe in the light, that you may become sons of light.” When Jesus had said these things, he departed and hid himself from them. 37 Though he had done so many signs before them, they still did not believe in him, 38 so that the word spoken by the prophet Isaiah might be fulfilled: “Lord, who has believed what he heard from us,  and to whom has the arm of the Lord been revealed?” 39 Therefore they could not believe. For again Isaiah said, 40 “He has blinded their eye and hardened their heart, lest they see with their eyes,  and understand with their heart, and turn, and I would heal them.” 41 Isaiah said these things because he saw his glory and spoke of him. 42 Nevertheless, many even of the authorities believed in him, but for fear of the Pharisees they did not confess it, so that they would not be put out of the synagogue; 43 for they loved the glory that comes from man more than the glory that comes from God.  John 12:34-43

A. Personal Impact of the Sin of Unbelief

1. It will bring chastisement upon us from the Lord: Mark 16:14

2. It will bring broken fellowship with the Lord: Luke 24:25-27

B. Corporate Impact of the Sin of Unbelief

1. It will stop God’s work among us: Matthew 13:57-58

2. It will reduce Christianity to mere function: Acts 12:5-17

C. Overcoming the Sin of Unbelief

1. Grieve over it: Mark 9:14-24

2. Pray against it: Mark 9:24

3. Live others centered: Hebrews 3:12-13