Holy

Kadosh is proclaimed three times in the Kedushah prayer—'Kadosh, kadosh, kadosh Adonai Tzeva'ot' (Holy, holy, holy is the Lord of Hosts)—echoing the angels' praise in Isaiah's vision. The concept of holiness in Judaism is not about withdrawal from the world but about sanctifying everyday life. The word is the root of kiddush (sanctifying Shabbat with wine) and kaddish (the mourner's prayer that sanctifies God's name).