25 These things I have spoken to you while being present with you. 26 But the Helper, the Holy Spirit, whom the Father will send in My name, He will teach you all things, and bring to your remembrance all things that I said to you (John 14:25–26, NKJV)
Jesus taught His apostles God’s commands. They were to obey them because they loved Jesus, as must we (John 14:15). By doing so, His abiding presence was assured, even as it is to us when we obey His word (John 14:19-24). Jesus promised He would not abandon the apostles as orphans but would come to them by the Spirit of truth (“another Helper”) whom the Father would give them (John 14:15-18). Jesus assured His apostles that what He taught them in person would continue with them through the work of the Helper (the Holy Spirit). The Spirit would reveal “all truth” to the apostles and give them an accurate recall of all Jesus taught them (John 16:12-13). We are reading and keeping Jesus’s word when we read and obey the apostles’ teaching (John 14:23). Jesus promised the apostles the Father would send them the Helper, which He did (Acts 1:4, 5, 8; 2:1-4). Jesus promised His apostles the Holy Spirit would empower them to know all Jesus taught them, which He did (Heb. 2:3; Gal. 1:11-12). When we read their writings we can understand what they knew of God’s plan to save us in His Son (Eph. 3:3-5). We love Jesus and have fellowship with Him by keeping what the apostles taught (John 13:20; 14:23-24).