Now Abraham and Sarah were old, well advanced in age; and Sarah had passed the age of childbearing. Therefore Sarah laughed within herself, saying, “After I have grown old, shall I have pleasure, my lord being old also?”
Did you notice Sarah’s sin in this passage? It’s one we often have much compassion for, but make no mistake—her sin was a serious sin.
It was the sin of unbelief. The sin of essentially calling God a liar.
John Stott put it this way: “Unbelief is not a misfortune to be pitied; it is a sin to be deplored. Its sinfulness lies in the fact that it contradicts the word of the one true God and thus attributes falsehood to Him.”
When God says He will do something, He will do it—it might not look like we think it should look (or even want it to look) and it might not happen when we want it to happen, but God will do it. To believe otherwise asserts that God isn’t honest.
Sarah’s response and laughter revealed her unbelief rooted in self-pity. Her focus was fixated on her ability, which was an inability to bear a child (a promise God hadn’t fulfilled yet). But belief holds fast to the promise and trusts that God can and will do the impossible—that God will do what He said He will do.
As serious as Sarah’s sin of unbelief was, God’s grace was greater. Later in this exchange, the Lord Himself asks this question: “Is anything too hard for the Lord?”
This question isn’t rhetorical. It can be answered. And the answer is: no, nothing is too hard for the Lord. Nothing.
Is anything in your life too hard for the Lord? Are there promises He has made that you think He can’t keep? Are you laughing within yourself at the prospect of God doing the impossible? Repent today—put away your self-pity and believe. Listen to our study in Genesis 18 and learn from Sarah’s sin.