And Sara said: God hath made a laughter for me: whosoever shall hear of it will laugh with me.

“Come now, today too, dearly beloved, let us take up the thread of yesterday's remarks and thus set before you this spiritual meal so that we may once more come to learn, as you heard yesterday, the good God's ineffable care and considerateness and the patriarch's remarkable obedience and gratitude. Do you see how the birth of Isaac made Sarah joyful? "She said, 'The Lord brought laughter to me: whoever hears of it will rejoice with me.' " Everyone who hears of it, she is saying, I will convince to be a sharer of my joy. After all, the gift given me by God is wonderful, surpassing human limitations. I mean, who would not be struck, she is saying, to see me feeding and nursing a child in old age after being childless up to this stage of my life? As though surprised and amazed at the event, she added, "Who will let Abraham know that Sarah is nursing a child, that I have borne a son in my old age?" Since what happened was beyond the bounds of nature, she naturally demands, "Who will let him know?" as if to say, Who will imagine it? Who would entertain such an idea? What mind could grasp it? Is there any reasoning that could invent this happening in every detail? Not so remarkable was the incident of the flood of water gushing from the rock in the desert when Moses struck it with his rod as was this instance of a child being born of a womb already deprived of vitality and a ready flow of milk. You see, for the birth to be known to everyone and bring everyone to acceptance of the marvel, for those who heard of it both then and later, she feeds the child and insists on nursing it. She said, "Who will let Abraham know that Sarah is nursing a child, that I have borne a son in my old age," this strange, surprising favor done me in my old age? What is the meaning of "I have borne a son in my old age"? That even without sterility my time of life was sufficient to make me despair of bearing children. But all these obstacles the Lord caused to disappear and has granted me the birth of the child and the flow of milk.”

“And she said, who would have said unto Abraham,.... No one a year ago could ever have thought of such a thing, much less have come and told Abraham that he should have a child or children by Sarah; the thing was incredible, and next to impossible; none but God himself, or an angel from him, could have declared this, as none but he could bring it about, the thing is so marvellous and astonishing: that Sarah should have given children suck? that she who was ninety years of age should bear a child, and suckle it, as she did; and in doing which she set an example to her daughters to do the like, since neither age nor grandeur, nor the business of her family, were any objection to this duty of nature; and her being able to do this was a clear proof that this was truly a child of her own. The plural number may be put for the singular, as it often is, see Gen 46:23; or Sarah might think, as she had strength given her to bear and suckle one child, she might bear and suckle more; though the phrase seems only to be expressive and descriptive of her as a nursing mother: for I have borne him a son in his old age; See Gill on Gen 21:2.”

“God hath made me to laugh - Sarah alludes here to the circumstance mentioned Gen 18:12; and as she seems to use the word to laugh in this place, not in the sense of being incredulous but to express such pleasure or happiness as almost suspends the reasoning faculty for a time, it justifies the observation on the above-named verse. See a similar case in Luk 24:41, where the disciples were so overcome with the good news of our Lord's resurrection, that it is said, They believed not for joy.”