It has been stated by some that a Christian is unable to commit sin. Did Jesus expect His disciples to become sinless? If so, why did He teach them to pray, "And forgive us our sins; for we also forgive every one that is indebted to us. And lead us not into temptation; but deliver us from evil." Luke 11:4 In this model prayer, Jesus teaches His disciples to pray for the forgiveness of their sins every time they pray. What would be the need for such praying if they were sinless?