There are many deceivers in the world who seek to oppose truth. By adding to truth, taking away from truth, undermining it, or altogether rejecting it, truth is attacked. As God’s people, we know there is truth, and we know God is true. How do we discern truth in an age of deception? John was concerning with this same issue in his day. We can recognize false teaching from deceivers by knowing and living according to the truth.