Quarrelsome quorum quandaries[1]
ולא תחללו את-שם קדשי ונקדשתי בתוך בני ישראל אני יקוק מקדשכם
Do not profane My Holy Name, and I will be sanctified amongst the Children of Israel; I am Hashem Who sanctifies you[2]
A fundamental principle in Judaism is that declarations of holiness need a quorum[3]. In other words, kaddish, kedusha, Torah reading, the Kohanic blessings, and the like, all require ten adult male Jews be present. The idea is that when we sanctify Hashem’s name, it needs to be done in a public fashion, with a minimum of ten men. How do we know this? A rather ironic source.