Then Sarah (who had overheard the conversation, and the charge preferred against her, and who probably now appeared before the stranger) denied, saying, I laughed not. Sarah's conduct will admit of no other explanation than that which the sacred narrative itself gives. For she was afraid. The knowledge that her secret thoughts had been deciphered must have kindled in her breast the suspicion that her visitor was none other than Jehovah. With this a sense of guilt would immediately assail her conscience for having cherished even a moment any doubt of the Divine word. In the consequent confusion of soul she tries what ever seems to be the first impulse of detected transgressions, viz; deception (cf. Genesis 3:12, Genesis 3:13). And he said, Nay; but thou didst laugh. With a directness similar to that which he employed in dealing with the first culprits in the garden, not contending in a multiplicity of words, but solemnly announcing that what she said was false. The silence of Sarah was an evidence of her conviction; her subsequent conception was a proof of her repentance anti forgiveness.
HOMILETICS