Sarah laughed within herself; not from joy and admiration, but from distrust and contempt, as if it were incredible. Heb. In her heart, i.e. she secretly derided it, though none but herself, as she thought, knew it. Shall I have pleasure? Not so much in the conception, as in the education and fruition of a child.
Related Commentaries of Genesis 18:12
Genesis 18:12
12 Therefore Sarah laughed within herself, saying, After I am waxed old shall I have pleasure, my lord being old also?