โHowbeit when He, the Spirit of truth, is come, He will guide you into all truthโ (Johnย 16:13).
How blessed to know that the Author of the blessed Book which has changed so many hearts and lives and homes isย โthe Spirit of truth.โ
The Spirit did not, of course, reveal all truth at one time. โThe Law was given by Moses;โ later the prophesies were penned by men of God as they were โmoved by the Holy Spiritโ and still later our Lord uttered truth โkept secret since the world began.โ
But even our blessed Lord, while on earth, did not lead His followers into all the truth which God would have His people know.ย โI have yet many things to say unto you,โย He said,ย โbut ye cannot bear them now. Howbeit, when He, the Spirit of truth, is come, He will guide you into all truthโย (John 16:12,13).
But when the Spirit came at Pentecost, did He immediately lead the disciples into all truth? Not yet. They still proclaimed the prophetic program, the message which our Lord had taught them and committed to them (Luke 24:45; Acts 1:2,3).
It was not until some time later that the glorified Lord revealed โGodโs purpose and graceโ to and through the Apostle Paul, and the Spirit in turn caused others to understand it (Gal. 2:2,7,9; Eph. 3:1-5; II Tim. 1:9).
The glorious message revealed to Paul is the capstone of divine revelation, thus he says that it was given to him to โfulfil [complete] the Word of Godโ (Col.ย 1:25).
St. Paul wrote more books of the Bible than any other writer and in them we have the fulness of divine truth as God would now have us know and understand it! source