In Luke 17, people come to Jesus in a desperate situation and needing his help. Theirs was a desperation from a physical sickness, and while we may occasionally run into situations where we need a physical cure, our need for Jesus stems from a spiritual sickness. While Jesus’ ability to save is consistent, there is a difference in our response. We can either move on once we feel we no longer need him, or respond in praise and thanksgiving, acknowledging him as our greatest gift.