In this passage Jesus declares that He is one with the Father. In case there is any doubt as to what He meant by this we can look at the reaction of the people present at the time. They clearly understood that Jesus was declaring Himself to be God. In His declaration, Jesus:
Affirms the Trinity
Jesus does not say that He is the same as the Father but that He is one with the Father. This opposes the false teaching of Mormons, Jehovah Witnesses, and Oneness Pentecostals. Jesus is declaring that He is a separate and distinct being from the Father; however, at the same time He is one with the Father. God is three separate and distinct Persons yet one unified God.
Affirms His Deity
Jesus is declaring that He is God. By being one with the Father, He is showing that He is the eternal God. Jesus cannot be a moral teacher. He is either God or a liar.
Affirms the Unity of Scripture
Jesus is here declaring that as one with the Father there is no difference in their commands, character, or revelation. There has not been a change between the God of the Old Testament and the Jesus of the New Testament. They are one. You cannot reject the Old Testament God without rejecting Jesus Christ, and you cannot accept Jesus without accepting all He said in the Old Testament.
Demands faith, repentance, and obedience
Because Jesus is one with the Father you will be judged based upon your response to Jesus and His teachings. You cannot be right with God and not right with Jesus. You cannot be right with Jesus yet disobey God’s commands. They are one. You must come to God through faith in Jesus Christ. You must repent and obey His commands.
Will you repent and believe in Jesus?