John 17.20-23 cont.
20 But it is not only about them that I ask, but also about those believing in Me because of their word.
21 That they might all be one, even as You, Father, are in Me and I in You, that they might also be in Us, so that the world might believe that You did send Me.
22 And the glory which You have given to Me I have given to them, so that they might be one even as We are one.
23 I in them and You in Me, that they might be perfectly one, so that the world might know that You sent Me and You loved them, even as you love Me.
The prayer of Jesus went beyond praying for His immediate disciples. He was praying for every future generation of people who come to believe in Him because of the words of His disciples.
Therefore, this includes today’s generation. Let us praise God that today there are many hundreds and thousands of people who are coming to receive Jesus as their Lord and Saviour. Jesus prayed that we should all be one.
We believe because of the words of the disciples.
This was immediately true as the early Church was born. God’s word informs us:
 Those who believed what Peter said were baptized and added to the church—about three thousand in all.
 They joined with the other believers and devoted themselves to the apostles’ teaching and fellowship, sharing in the Lord’s Supper and in prayer – Acts 2.41-42 (NLT).
Those three thousand early believers came to faith in Jesus because of what they heard about Him from Peter, and also from the other disciples as they spoke in tongues and proclaimed what God had done. People of many different languages heard the disciples speaking in their own language:
“And we all hear these people speaking in our own languages about the wonderful things God has done!” – Acts 2.11 (NLT).
This was the beginning of the fulfilment that others would come to believe in Jesus through the words of the disciples. Today’s Church is built on the same foundation of the apostles teaching. Therefore, we must never neglect their teaching, which we find in the New Testament. We must not add to it, or take away from it, because it is the teaching that Jesus gave to them. They have passed it on for every future generation to receive, and so come to faith in Jesus.
In this Jesus prays that we also may be one, and that unity comes from receiving and believing the teaching of the apostles.
Let us make sure that we allow this teaching to be the foundation of our life in Christ Jesus.