Abraham is the father of faith, but he was by no means perfect, and we can a learn a lot from his mistakes! When we walk by faith, our success can never be attributed to our wonderfulness. It is based upon the goodness of God, His unchanging plan for us, and the fact that He is such a Redeemer! We need to remember this both at times when we are tempted to become self-righteous, and when we falter.