In today's Gospel reading, Luke 17: 1-7, Jesus, to stress the importance, again uses strong words to command us to not sin, to forgive, to believe, etc. My thoughts are that even though the demands sound severe, they can be met or he wouldn't have given them to us, for he is always reasonable. With God's help, all should be possible. Looking at it from another angle: if we simply go along with doing what he wants us to do, how can he change his mind to make it impossible for us? God just does not contradict himself.