The other thing John did out of love for his friends and others was to warn them against false teachings. He had walked with Christ and knew the truth. I can imagine what must have transpired after Jesus died; many people must have come up claiming to have known Him and this must have led to false teachings and the misleading of many who had no access to the scriptures or to the disciples and apostles to verify what was being taught. We are living in a time where there is an overload of information. I hope we shall take time to seek out the truth. God desires a relationship with us and it is in walking with Him that we can grow in truth 1 John 2:18-27, 4:1-6 and 2 John 1-11.