134. Tachanun on Mondays and Thursdays

22:9 Mondays and Thursdays are considered an auspicious time because Moshe ascended Mount Sinai to receive the second set of tablets on a Thursday and he returned on a Monday. We therefore increase our prayers of supplication on these days, reciting “v’Hu Rachum” before Tachanun. This section is recited standing. On days when Tachanun is not said, this section is likewise omitted. (Some recite the the 13 Divine attributes and vidui before v’Hu Rachum – Mishnah Brurah 134:1.) 22:10 The “half” Kaddish is recited after Tachanun. On Mondays and Thursdays, the prayer “Keil erech apayim” is also recited, standing. Days on which “Keil erech apayim” is omitted are listed in 25:2.