The Pulpit Commentary - Genesis 18:12
"Sarah laughed within herself." 1. The incongruity between a Divine promise and the sphere of its fulfillment is temptation to unbelief. 2. A disposition to measure the reality and certainty of the Divine by a human or earthly standard is sure to lead us to irreverence and sinful doubt. 3. There may be an inward and concealed working, known to God though not outwardly expressed. Which is still both an insult to him a d an injury to us. 4. The root of unbelief is in the ground... read more
The Pulpit Commentary - Genesis 18:12
Therefore (literally, and) Sarah laughed within herself —Abraham had laughed in joyful amazement, ( Genesis 18:17 ) at the first mention of Sarah's son; Sarah laughs, if not in unbelief (Calvin, Keil, 'Speaker's Commentary,' Wordsworth), at least with a mingled feeling of doubt and delight (Lange, Murphy) at the announcement of her approaching maternity— saying, After I am waxed old shall I have pleasure, my lord being old also?— literally, and my lord, i.e. my husband, is old. The... read more