The title ALL TRUTH has been taken from the promise made by the Lord: “Howbeit when he, the Spirit of truth, is come, he will guide you into all truth:…” (John 16:13). This promise we have sought to trace; first as to its fulfilment through the revelation which was given to complete the Word of God, and then in its application to each believer who is guided into that which God would now make known to His saints.