“I have much more to tell you, but you cannot bear it now. (John 16:12)

According to the remarks of Studium Biblicum, the coming of the Holy Spirit carried two missions: Firstly, to testify the sins of mankind, to get them to admit their sins before believing in Jesus, to admit that Jesus is justice, that Jesus is the son of God, and to know that through Jesus’ death, the devil had already been condemned. Secondly, to act as the mentor of the disciples, so they could understand all the truth that Jesus said, that they can know Jesus better, and to adore Jesus.

The Gospel of Luke had recorded the dialogues between each of the two criminals and Jesus while they were hanging on their cross, which signified the importance of repentance.

“Are you not the Messiah? Save yourself and us.”

But the other criminal rebuked him. “Have you no fear of God, for you are subject to the same condemnation? And indeed, we have been condemned justly, for the sentence we received corresponds to our crimes, but this man has done nothing criminal.” Then he said, “Jesus, remember me when you come into your kingdom.” 

Jesus replied to him, “Amen, I say to you, today you will be with me in Paradise.” (Luke 23:39-43)

The most difficult parts for the disciples to understand were about Jesus’ sufferings, death and resurrection. But soon after the coming of the Holy Spirit, Peter declared clearly: "We are witnesses of everything He did in the country of the Jews and in Jerusalem. They killed Him by hanging Him on a tree, but God raised Him from the dead on the third day and caused Him to be seen. (Act 10:39-40)

Peter deemed to be a blessed one. When he said: "You are the Messiah, the Son of the living God." Jesus said to him in reply, "Blessed are you, Simon son of Jonah. For flesh and blood has not revealed this to you, but my heavenly Father. And so I say to you, you are Peter, and upon this rock I will build my church” (Matt 16:16-19)

Never the less, Peter had yet to go through the process of denying Jesus to learn to humble himself. Jesus asked Peter: “Do you love me more than these?” Peter answer: “Yes, Lord, you know that I love you.” Jesus said to him, “Feed my lambs.” (John 21:15)