"'For if you remain silent at this time, relief and deliverance for the Jews will arise from another place, but you and your father's family will perish. And who knows but that you have come to royal position for such a time as this?'" NIV translation
Mordecai continues to explain to Esther that silence is not an option as she will perish. He demonstrates his faith by trusting that, whether or not she agrees to go to the king, God will deliver His people. He asks her to think about the reason that she is in her royal position. In Ephesians 2:10, we are told that God has prepared things for us to do (just as He had for Esther). Like her, we can choose to obey and follow the course He has set for our lives or we can ignore His Spirit. If we choose to obey, we will be blessed but, if we choose to ignore, God will use someone else to do His will.