2 Peter 1:10

Therefore, believers, be all the more diligent to make certain about His calling and choosing you (be sure that your behavior reflects and confirms your relationship with God); for by doing these things (actively developing these virtues), you will never stumble (in your spiritual growth and will live a life that leads others away from sin).

We have a call on our lives as Christians, and to fulfill it, we must develop our character. Our character should reflect biblical values and positively represent Christian values. To do this, we must grow in the word, and if we make a mistake, work to do better. We have an essential job to help others and lead others away from sin.