Laughter

(1) ‘VAYITZCHAK’ (AND HE LAUGHED). Onkelos translated: “and he rejoiced.” This is correct since the word tzachak can be used intermittently for sporting or rejoicing, just as in the verses: ‘Mesacheketh’ (Sporting) in His habitable earth,432Proverbs 8:31. ‘mesachkim’ (rejoiced) before the Eternal.433II Samuel 6:5.
In my opinion the intent of this expression is to convey the thought that whoever sees a favorable unusual event in one’s life rejoices to the point where “his mouth is filled with laughter.”434Psalms 126:2. It is this thought which Sarah expressed: G-d hath made laughter for me; everyone that heareth will laugh on account of me,435Further, 21:6. just as in the verse, Then was our mouth filled with laughter, and our tongue with singing.434Psalms 126:2. And this is what Abraham did. When this good tiding was related to him, he rejoiced and his mouth was filled with laughter, and he said in his heart that this is an occasion for rejoicing as it is a very wonderful matter. Shall a child be born unto him that is a hundred years old? and shall Sarah, that is ninety years old, bear? And will this matter not give cause for rejoicing and happiness? Only, Scripture speaks summarily of his wonderment, as it is connected with the word vayitzchak.

by fire, and shall we not weep? Rabbi Akiva said to them: That is why I am laughing. If for those who violate His will, the wicked, it is so and they are rewarded for the few good deeds they performed, for those who perform His will, all the more so will they be rewarded. The Gemara relates another incident involving those Sages. On another occasion they were ascending to Jerusalem after the destruction of the Temple. When they arrived at Mount Scopus and saw the site of the Temple, they rent their garments in mourning, in keeping with halakhic practice. When they arrived at the Temple Mount, they saw a fox that emerged from the site of the Holy of Holies. They began weeping, and Rabbi Akiva was laughing. They said to him: For what reason are you laughing? Rabbi Akiva said to them: For what reason are you weeping? They said to him: This is the place concerning which it is written: “And the non-priest who approaches shall die” (Numbers 1:51), and now foxes walk in it; and shall we not weep? Rabbi Akiva said to them: That is why I am laughing, as it is written, when God revealed the future to the prophet Isaiah: “And I will take to Me faithful witnesses to attest: Uriah the priest, and Zechariah the son of Jeberechiah” (Isaiah 8:2). Now what is the connection between Uriah and Zechariah? He clarifies the difficulty: Uriah prophesied during the First Temple period, and Zechariah prophesied during the Second Temple period, as he was among those who returned to Zion from Babylonia. Rather, the verse established that fulfillment of the prophecy of Zechariah is dependent on fulfillment of the prophecy of Uriah. In the prophecy of Uriah it is written: “Therefore, for your sake Zion shall be plowed as a field, and Jerusalem shall become rubble, and the Temple Mount as the high places of a forest” (Micah 3:12), where foxes are found. There is a rabbinic tradition that this was prophesied by Uriah. In the prophecy of Zechariah it is written: “There shall yet be elderly men and elderly women sitting in the streets of Jerusalem” (Zechariah 8:4). Until the prophecy of Uriah with regard to the destruction of the city was fulfilled I was afraid that the prophecy of Zechariah would not be fulfilled, as the two prophecies are linked. Now that the prophecy of Uriah was fulfilled, it is evident that the prophecy of Zechariah remains valid. The Gemara adds: The Sages said to him, employing this formulation: Akiva, you have comforted us; Akiva, you have comforted us. We will return to you and we have acquired Tractate Makkos.