into all truth
16:13 into all truth. Christ had yet “many things to say” (John 16:12) to His disciples, but these would be revealed through the coming Spirit of truth. Not only would the Holy Spirit enable them to remember all Christ had said (John 14:26), but would eventually through divine inspiration by the Spirit reveal “all truth” needed for the future ministry of Christians in the world. These promises amount to Christ’s promise of the continuation and completion of God’s written Word. He had already on various occasions authenticated the Old Testament (e.g., Matthew 5:18; Luke 24:44; John 10:35); now He also authenticated the yet-to-be-written New Testament.