John the Baptist called people to more than words or ritual; he told them to change their behavior. “Prove by the way you live that you have repented of your sins” means that God looks beyond our words and religious activities to see if our conduct backs up what we say, and he judges our words by the actions that accompany them. Do your actions match your words?
Publishers, Tyndale House. NLT Life Application Study Bible, Second Edition (Kindle Locations 145150-145153). Tyndale House Publishers, Inc.. Kindle Edition.