In Genesis 17:17, Abraham laughs at the thought of having a child so old. Here, Sarah laughed. God told Abraham to name the child Issac, which means laugh in Hebrew. It is funny how God works. But I chapter 18 we see how Sarah doesn't believe God when he says she will have a baby. She and Abraham have yet to see how powerful God is.
Lord, I pray that I continue to believe without needing a visual proof just how powerful you are. Open our hearts so we are not doubters and see your majestic role in our lives. Amen.