This completes the teaching portion of Jesus' words during the Last Supper, begun in chapter 13. Christ echoes many of the themes of His earthly ministry. His focus is especially on encouragement: reminding the disciples that the hard times they will experience will end in victory. While they don't clearly understand, the Holy Spirit will lead them in the right direction. This ends with Christ's beloved declaration that He has "overcome the world." That introduces the record of Jesus' High Priestly Prayer in chapter 17, immediately before His arrest early in chapter 18.