When Jesus had finished speaking to the apostles, He turned to God in prayer. He began by praying for Himself that God would glorify Him by bringing Him through the events that He was facing and by returning Him to the status that He had before the creation of the world, so He could give eternal life to mankind.
Jesus reported to God that He had finished the work that had been given Him to do on the earth. He had revealed God’s name and taught God’s word to the apostles whom He had received from Him.
Since He was not going to be with the apostles, Jesus prayed for their care and protection from the world and that they would remain united as one, just as God and Jesus are one. He prayed that they would be protected from the evil one (Satan) and be sanctified (set apart) from the world by God’s truth.
Jesus had been set apart by God to be His messenger to the world. The apostles were set apart by Jesus to be His messengers to the same world.
After Jesus had prayed for Himself and the apostles, He turned His attention to the needs of those who would hear His word in the future. He prayed that they would be one, as the Father and Jesus are one in each other and that they would be with Him and behold His glory (be saved in heaven).
Jesus prayed for the unity of His believers and that through this unity, the world would know that God had sent Him and that God loved them as He had loved Jesus.
What happened? There are hundreds of different groups claiming to be Christians, but not united. The people of the world look at all of the divisions and contradictions in the religious world and say, “If that is Christianity, I don’t want any part of it.” Our responsibility is to obey the truth, the whole truth and nothing but the truth.