5 Now I am going back to the One who sent me. But none of you asks me, ‘Where are you going?’ 6 Your hearts are filled with sadness because I have told you these things. 7 But I tell you the truth, it is better for you that I go away. When I go away, I will send the Helper to you. If I do not go away, the Helper will not come. 8 When the Helper comes, he will prove to the people of the world the truth about sin, about being right with God, and about judgment. 9 He will prove to them that sin is not believing in me. 10 He will prove to them that being right with God comes from my going to the Father and not being seen anymore. 11 And the Helper will prove to them that judgment happened when the ruler of this world was judged.—John 16:5-11 (NCV)
The disciples must have wondered how Jesus going away could be better than having Him here, face to face. But Jesus knew that His time to leave was very near at this time. He also knew that the Helper could do something that He, in human flesh, could never do. That was to actually live inside a human being. The Helper, the Holy Spirit would take up a permanent residence inside those that accepted Jesus as their Savior. The Holy Spirit could be omnipresent, He could dwell in all of us at the same time thus as God had promised, we would never be alone, He would always be with each of us. He will prove to unbelievers that not believing in Jesus is the sin that caused Jesus to die on the Cross. He will prove that judgment happened when satan was judged. This judgment is spoken of in Isaiah. 12 King of Babylon, morning star, you have fallen from heaven, even though you were as bright as the rising sun! In the past all the nations on earth bowed down before you, but now you have been cut down–Isaiah 14:12 (NCV)
This judgment was also the event Jesus was referring to in Luke 10, when He said: 18 “Yes,” he told them, “I saw Satan fall from heaven like lightning! 19 Look, I have given you authority over all the power of the enemy, and you can walk among snakes and scorpions and crush them. Nothing will injure you.–Luke 10:18,19 NCV)
In this statement, Jesus tells us He was there in heaven when satan was judged and He witnessed satan being cast out of heaven. And now, Jesus has the blessings of the Father to give the disciples and us authority over all the power of the enemy. The Holy Spirit is the guarantor of that promise of authority and He fights our battles for us.
20 But you have an anointing from the Holy One, and all of you know the truth. 21 I do not write to you because you do not know the truth, but because you do know it and because no lie comes from the truth. 22 Who is the liar? It is whoever denies that Jesus is the Christ. Such a person is the antichrist—denying the Father and the Son. 23 No one who denies the Son has the Father; whoever acknowledges the Son has the Father also. 24 As for you, see that what you have heard from the beginning remains in you. If it does, you also will remain in the Son and in the Father. 25 And this is what he promised us—eternal life.—1 John 2:18-25 (NIV)
Jesus said “I am the Truth, the Way, and the Life”, so when we accepted Jesus as our Savior and Lord, we accepted the Truth. Because the Holy Spirit abides in us, we have the truth abiding in us. We also have God’s written Word, which is truth. When the liar, satan, tempts us, we must use the Word to overcome the temptations that he puts in front of us. Anyone who denies the truth is a form of antichrist. To receive the promises of God, we have to hang onto what we have been taught and have come to believe, then we will receive our reward–eternal life. 35 So do not lose the courage you had in the past, which has a great reward. 36 You must hold on, so you can do what God wants and receive what he has promised. 37 For in a very short time, “The One who is coming will come and will not be delayed”.—Hebrews 10:35-37 (NCV)