אַל־תִּבָּהֵ֤ל מִפָּנָיו֙ תֵּלֵ֔ךְ אַֽל־תַּעֲמֹ֖ד בְּדָבָ֣ר רָ֑ע כִּ֛י כָּל־אֲשֶׁ֥ר יַחְפֹּ֖ץ יַעֲשֶֽׂה׃
Ne sois pas pressé de sortir de sa présence; ne t’engage pas dans une mauvaise affaire, car il fait tout ce qu’il veut.
Mishnah Moed Katan
On Rosh Hodesh, on Hannukah and on Purim they may wail and clap [their hands in grief]. Neither on the former nor on the latter occasions may they offer a lamentation. After the dead has been buried they neither wail nor clap [their hands in grief]. What is meant by wailing? When all wail in unison. What is meant by a lament? When one speaks and all respond after her, as it is said: “And teach your daughters wailing and one another [each] lamentation” (Jeremiah 9:19). But as to the future, it says: “He will destroy death forever, and the Lord God will wipe away the tears from all faces” (Isaiah 25:8).