§ The Gemara returns to discuss the response of the congregants to certain parts of the prayer service. While the prayer leader is reciting the blessing of: We give thanks, what do the people say? Rav says that they say: We give thanks to You, Lord our God, for the merit of giving thanks to You. And Shmuel says that one should say: God of all living flesh, for the merit of giving thanks to You. Rabbi Simai says that one should say: Our Creator, Who created everything in the beginning, for the merit of giving thanks to You. The Sages of Neharde’a say in the name of Rabbi Simai that one should say: We offer blessings and praises to Your great name, for You have given us life and sustained us, for giving thanks to You. Rav Aḥa bar Ya’akov would finish the blessing as follows: So may You give us life, and show us favor, and collect us, and gather our exiles into Your sacred courtyards, in order to observe Your laws and to fulfill Your will wholeheartedly, for giving thanks to You.
Rav Pappa said: These Sages each added a different element to the prayer. Therefore, we should combine them together and recite all of them.
The Laws of Modim D'Rabbanan ["Modim of the Rabbis"]. Containing 2 S'ifim:
When the prayer leader reaches "Modim", the congregation bows with [the leader], but they shouldn't bow [down] too far; and they say "We are thankful to You, (that You Hashem are) our God, God of all flesh etc."; and they conclude: "Blessed is the God of thanksgivings" without mentioning the [divine] Name. And there is one [authority] who says that one needs to also bow at the end, and it is proper to heed his words. (There are those who say that one should be bowing once while saying the entire thing, and that is the custom) (Piskei Mahari"a [R. Yisrael Isserlein])
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One who forgot and didn't say "Ya-aleh Veyavo" on Rosh Chodesh or Chol Hamoed, or any other thing that one would be required to repeat, one should focus and listen to the the entire eighteen blessings [i.e. Amidah] from the prayer leader from beginning to end, like one who prays oneself, and one should not interrupt nor converse, and one takes 3 steps backwards [at the end]. Since one already prayed, but just forgot and didn't remember, even though one is competent [to pray oneself], the prayer leader fulfills one's obligation.
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