“Nevertheless I tell you the truth; It is expedient for you that I go away: for if I go not away, the Comforter will not come unto you; but if I depart, I will send him unto you.” (John 16:7)
The privilege of declaring the gospel to the unsaved becomes a delightful use of the “power of God” (Romans 1:16), speaking the words of God to a heart that has been prepared by the trifold ministry of the Holy Spirit, who will “reprove the world” (John 16:8) of the following things.
“Of sin because they believe not on me” (v. 9). All sin of every person has been forgiven (1 John 2:2). The only sin that irrevocably condemns is unbelief (John 3:19), or more accurately stated, conscious rebellion against the ministry of the Holy Spirit as He convinces men of their need for salvation through Christ. Rejecting that message is “blasphemy” and is unforgivable (Matthew 12:31).
“Of righteousness, because I go to my Father, and ye see me no more” (John 16:10). Now that the Lord Jesus has gone up to heaven, there is “none righteous, no not one” (Romans 3:10) visible on Earth—including you and me. The Holy Spirit must convince men that righteousness does exist. Otherwise, there would be no possibility of understanding why we need to be saved.
“Of judgment, because the prince of this world is judged” (John 16:11). Some have suggested that the “prince” is Satan. I think not. There is no need to convince us that evil Lucifer needs to be condemned. However, that the sinless Son of God was condemned on Calvary for your sin and mine, now that needs supernatural convincing. HMM III