I Peter 3:15 says to “always be ready to give a defense to anyone who asks you for a reason for the hope that is in you.”  Simply put, that’s apologetics.  But in this short description, we discover three important details.  

First, doing apologetics means playing defense.  The Greek word for “defense” is apologia, from which we get the word “apologetics.”  Think about a football game.  At any time during the game, one team is trying to score (the offense) while the other is trying to stop them (the defense).  If your team has a really bad defense, you’ll get blown away.  Similarly, maybe you’ve been roughed up by some really tough objections to Christianity.  You’ve heard the challenges before.  “How can a good God allow suffering?” “The Bible is full of errors.”  “Jesus can’t be the only way to God.”  Apologetics helps us defend Christianity against tough questions.