John was so concerned about the early Church being deceived by false teachers that he repeated this warning later on in his letter…for he wrote in Chapter 3:7 of I John,  “Dear children, do not let anyone lead you astray.”  Any teaching that denies Jesus Christ is God incarnate…and any teaching that places any thing or person above Him is fraudulent.  With cunning and wiliness false teachers will  speak of a “type” of Jesus, but if you listen carefully, it’s a corrupt version and not the truth.  So how can you know you’re not being lead down the path of destruction?  Without the firm foundation of the truth of God found in the Bible, we can all be easily duped and mislead.  Open the Bible…read the truth…allow it to formulate the basis of your belief system.  For when you have the truth within…no one will be able to lead you astray.