And the LORD asked Abraham, "Why did Sarah laugh and say, 'Can I really bear a child when I am old?'

Genesis 18:12
So she laughed to herself, saying, "After I am worn out and my master is old, will I now have this pleasure?"

Genesis 18:14
Is anything too difficult for the LORD? At the appointed time I will return to you--in about a year--and Sarah will have a son."

Genesis 21:6
Then Sarah said, "God has made me laugh, and everyone who hears of this will laugh with me."

Genesis 21:7
She added, "Who would have told Abraham that Sarah would nurse children? Yet I have borne him a son in his old age."

And the LORD said to Abraham, Why did Sarah laugh, saying, Shall I of a surety bear a child, which am old?