The Victor
Can you blame Abraham and Sarah for doubting God's promise? Sarah had been childless all their married life, and now she was approaching the age of ninety. Could anything be more impossible? Ninety-year-old women simply do not bear children.
But God gently reminded them that He is sovereign and nothing is too hard for Him. And the following year the impossible happened: Isaac was born. God's promise to Abraham that he would become the father of a great nation (and the ancestor of Jesus Christ) could now be fulfilled.
Remember Abraham and Sarah the next time you encounter what seems to be an insurmountable problem. Nothing was too hard for God then--and nothing is too hard for Him today. If it were, why would we pray? God is still sovereign over His creation, and He is still at work. That doesn't mean He always answers the way we wish He would--but never doubt His power, and never doubt His love.
From Billy Graham's Hope for Each Day; Morning & Evening Devotions