Midrash for Numbers 36:6

Rabban Simon b. Gamaliel said: "Never was there any more joyous festival than the fifteenth of Ab and on the Day of Atonement, etc." It is readily understood why the Day of Atonement should be a day of rejoicing, because that is a day of forgiveness, and on that day the second tables of the Law were given to Moses; but why should the fifteenth of Ab be a day of rejoicing? "Because," said R. Juda in the name of Samuel, "on that day the members of the different tribes were permitted to intermarry." What passage did they interpret to prove this? (Num. 36, 6) This is the thing which the Lord hath commanded concerning the daughters of Zelaphehad, etc.; i.e., this thing should only apply for this generation, but not for later generations. Rabba b b. Chana in the name of R. Jochanan said: "On that day (fifteenth of Ab) the members of the tribe of Benjamin were permitted to intermarry with the other tribes, as it is said (Jud. 21, 1) Now the men of Israel had sworn in Mizpah, saying: 'Not any one of us shall give his daughter unto Benjamin for a wife.' What passage did they interpret? The passage reads: Any one of us, but not our children." R. Ida b. Abin in the name of R. Joseph said: "On that day the last of those who were destined to die in the desert perished; for the master said that as long as those destined to die in the wilderness were still alive, the Lord did not speak to Moses, [in a favorable manner], as it is said (Deut. 2, 6) And it came to pass, when all the men of war were spent by dying from the midst of the people, that the Lord spoke unto me. saying; i.e., unto me in particular."

(Fol. 121) There is a Mishnah Rabban Simon b. Gamaliel said: "Never were there any more joyous festivals in Israel than the fifteenth of Ab and the Day of Atonement, for on them the maidens of Jerusalem would go forth dressed in white garments— borrowed ones, however, in order not to cause shanie to those who had none of their own. It is readily understood why the Day of Atonement should be a day of rejoicing, because that is a day of forgivenness, and on that day the second tables of the Law were given to Moses; but why should the fifteenth of Ab be a day of rejoicing? "Because," said R. Juda in the name of Samuel, "on that day the members of the different tribes were permitted to intermarry." What passage did they interpret to prove this? (Num. 36, 6) This is the thing which the Lord hath commanded concerning the daughters of Zelaphehad, etc., i.e., this thing should only apply for this generation, but not for later generations. Rabba b. b. Chana in the name of R. Jochanan said: "On that day (fifteenth of Ab) the members of the tribe of Benjamin were permitted to intermarry with the other tribes, as it is said (Jud. 21, 1) Now the men of Israel had sworn in Mizpah, saying: 'Not any one of us shall give his daughter unto Benjamin for a wife.' What passage did they interpret? The passage reads: Any one of us, but not our children." R. Dimi b. Joseph in the name of R. Nachman said: "On that day the last of those who were destined to die in the desert perished; for the master said that as long as those detined to die in the wilderness were still alive, the Lord did not speak to Moses, (in a favorable manner), as it is said (Deut. 2, 6) And it came to pass, when all the men of war were spent by dying from the midst of the people, that the Lord spoke unto me, saying; i.e., unto me in particular." Ula said: "On that day the guards, appointed by Jeroboam to prevent the Israelites from coming to Jerusalem, were abolished by Hoshea, the son of Elah, who said: (Fol. 31) 'Let them go wherever they choose.' " R. Mathna said: "On that day permission was granted to bury the dead who were killed in battle at the city of Bethar;," for R. Nathan said: "On that day, when those killed at Bethar were permitted to be buried, the assembly at Yamnia ordained the section of the after meal benediction: Blessed art thou, God the good, that doth good. By the good is meant that the bodies were not left to putrefy and by doth good, that burial was permitted." Rabba and R. Joseph both said: "On that day Israel would cease to cut wood for the altar, as we are taught in a Baraitha: R. Eliezer the Great said: "From the fifteenth day of Ab the heat of the sun is lessened and the timber is not longer dry, so they ceased to cut wood for the altar.' " R. Menashia adds: And it was called the day of breaking the axe. From that day on, he who adds the night to his day-study may have years and days added to his life, but to him who does not, it may not be added to his days. R. Joseph was taught that the last statement means his mother will bury him.