In verses 17-19, Jesus is praying about the disciples and
speaks of sanctification. "Sanctify them (the disciples) by Your truth.
Your word is truth. As You sent Me into the world, I also have sent them into
the world. And for their sakes I sanctify Myself, that they also may be
sanctified by the truth."
John MacArthur's commentary (The MacArthur Daily Bible) on
the verse 17 says sanctification means the setting apart for a particular use
or purpose. Jesus was set apart—He was in the world but not of the
world. And if the disciples hadn’t realized it before, they would learn quickly
following the death and resurrection of Christ that they were in the world but
not of the world too. They would learn the world hated them just as it had hated
Jesus.
Believers learn through the process of
sanctification that we are in the world but not of the world—Jesus says we are set
apart by the truth of the word of God. The apostle John would write in chapter 20, verse 31, “but these (words) are written that you may
believe that Jesus is the Christ, the Son of God, and that believing you may
have life in His name.” Yes, set apart because of grace through faith in Jesus Christ.
Of course, I love the verses in John 17 where Jesus is
praying about me—verses 20-26. Just think, all those many years ago, Jesus prayed
about me—and not only me but also about all future New Testament believers. He
prayed, "I do not pray for these alone, but also for those who will
believe in Me through their word (the disciples—re-read John
20:31 above); that they all may be one, as You, Father, are in Me, and I in You;
that they also may be one in Us, that the world may believe that You sent Me.
And the glory which You gave Me I have given them, that they may be one just as
We are one: I in them, and You in Me; that they may be made perfect in one, and
that the world may know that You have sent Me, and have loved them as You have
love Me."
Wow; perfect unity with God the Father, God the Son, God
the Holy Spirit, and other true believers. Now that makes my heart sing with
joy! And I sincerely pray that it makes your heart sing too!