Genesis 18:12
“Therefore Sarah laughed within herself, saying, After I am waxed old shall I have pleasure, my lord being old also?”
KJV
Read in Genesis 18Meaning
Sarah laughs to herself and reflects on the improbability of renewed reproductive life for herself and Abraham at their age.
Read carefully
Her laughter should not be flattened into caricature or contempt; the narrative places it against a promise that appears humanly impossible.
Reflection
Sarah's reaction voices the tension many readers recognize between what is promised and what circumstances make plausible.