John declared one of his intents in writing his letters was to strengthen believers and encourage them to cling to the whole truth of God. Otherwise, he said, people will try to deceive you. And, as Pastor David adds, it’s critical to know, trust and obey all of God’s word so that you can grow in knowledge of God and be strengthened against the attacks of the enemy. Hold tight to God’s word. Be aware of where you may stumble or are vulnerable to attack so you may stand against disbelief and heresy.