Verbal volleys come from a variety of sources, but the greatest challenge is dealing with comments that arise inside our head. The battle of the mind is arguably the toughest challenge we have to face, and whether it is spiritual opposition or our sinful self, every follower of Jesus Christ must learn to fight back. Jesus is our role-model, and when he went through a time of testing - going toe to toe with the Devil himself, he demonstrated the power and authority that come from standing on the word of God.
Every believer is supernaturally enabled by the Holy Spirit to draw strength and power from the word of God, and we need to make the most of this heavenly combination.
Don't allow damaging thoughts to take hold. Directly engage whatever threatens to undermine your faith. Instead of being shocked and surprised, expect these challenges to arise and use internal dialogue to defuse the situation: "Yes, I guess I could believe that. Indeed it seems many people do believe that, but I'll choose to stand on what God's word says about the subject. Thanks for the input but I believe this is the truth!"
This may seem like a light-hearted approach to a serious subject, but when you learn to overcome these attacks you may find they don't show up as often. Most kids know that when you are teased or tormented, the more the barbed arrows strike their target the more the perpetrator will keep shooting. Learn to use the brush-off, and by speaking God's truth so you will stand on solid ground.