A common misinterpretation limits this promise solely to the original apostles, denying modern believers the Holy Spirit's teaching and reminder role, while it broadly applies to all followers; another error views 'all things' as granting exhaustive knowledge of every subject or new revelations beyond Christ's words, rather than focused illumination of his gospel and commands; some also overlook the context of Jesus preparing his disciples for his crucifixion and ascension, misapplying it to personal convenience or infallible memory without diligent study.
John 14:26
King James Version (1769)
26 But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you.
Jesus comforts his disciples by promising that the Father will send the Holy Spirit, referred to as the Comforter, in his name to teach them all things and bring to their remembrance everything he has said, ensuring divine guidance, illumination, and continuity of his teachings after his departure, empowering them for ministry and faithfulness.