Sometimes, even the elect might be led astray by good-sounding, entertaining preaching that has a remarkable amount of truth in the message. But a 99% truth is still a lie. The truth is always the bait that makes people swallow the lie. John admonishes us all to test the spirits, and thank God for those who are gifted at doing so - they help us in so many ways! But your own understanding demands that YOU do it, too!