The kedusha is said as part of the morning blessings of shema, and also in all the public recital of prayers. It's not said in the evening prayer, neither in the blessings before shema nor the prayer itself.

Is there any reason why it's only mentioned in the liturgy (shema, shemone esre) during the day and not at night? Could it be that the angels only say the prayer during the day? Or is it related to the practice not to learn written Torah at night? Or some other reason?

(The kedusha desidra is said sometimes at night, but for a different reason, and rumor has it that even then some specifically say the verses quietly.)

  • 1
    Well, it can't be in Shemoneh Esrei, because there's no Chazaras HaShatz for Maariv. The other ones are still valid. – DonielF Dec 30 '18 at 18:01
  • @DonielF I'm not totally sure about that. Technically you only need 10 people to say it as a דבר שבקדושה, but on the other hand an individual can't say it, so it might only be an option for public mandatory prayers – b a Dec 30 '18 at 18:24
  • 2
    I surmise that saying kedusha during the day is related to the idea of the angle that wrestled with Ya'akov all night and when dayllight struck, he says, "Let me go because it's daylight." Rash"i says "...and I must praise G-d". No proof to this theory, but I wouldn't be surprised that it has something to do with this. – DanF Dec 31 '18 at 3:31

You must log in to answer this question.

Browse other questions tagged .