3b. Afterwards, we recite "Ashrei", omit "Lam'natzeach" and recite "UVo
le'Tzion go'el." In that passage, we omit the verse, "Va'ani zos brisi..."
("And as for Me, this is My covenant..."), since it appears that one is
establishing a covenant for saying "kinnos" ("dirges"). Furthermore, it is
inappropriate to recite that verse because it relates how the words of
Torah "will not depart from your mouth," and on Tish'ah B'av, we are
forbbidden to study Torah (1). This verse is, however, recited in a
mourner's house during the remainder of the year, for although the mourner
is forbidden to study Torah, those who come to comfort him are not.
Therefore, we proceed to the verse "V'Attoh kadosh" [and complete the
remainder of the passage in the usual manner]. Then the full Kaddish is
recited, without the passage "Tiskabel" (2). Then "Oleinu" and the
mourner's Kaddish are recited. The "Song of Unity" ("Shir HaYichud"),
"Psalm of the Day" ("Shir shel Yom"), and the description of the incense
service are not recited [in the morning service, as is the usual custom.
Rather, they are recited before the afternoon service.]
[Although] "Eichah" ("Lamentations") [is not read communally during the
day] it is proper that it be read by every individual.
(1) Torah learning generally engenders a state of joy, and therefore, on
Tish'ah B'av, one is only allowed to learn those sections of the Torah
which are appropriate to a time of mourning, such as those that deal with
tragedy and destruction; for example, one may study the book of Job, and
the sections of the Tanach and Talmud discussing the destruction of the
Beit Hamikdash (Temple). One may also learn the laws of mourning.
(2) This is because the passage "Tiskabel" is a request that G-d accept our
prayers, and "Eichah" [3:8] states: "He shuts out my prayer."