Three classes of ministering angels raise a song of praise every day.
One class says, Holy! the second responds, Holy! and the third
continues, Holy is the Lord of hosts! But in the presence of the Holy
One--blessed be He!--Israel is more beloved than the ministering angels;
for Israel reiterates the song every hour, while the ministering angels
repeat it only once a day, some say once a week, others once a month,
others once a year, others once in seven years, others once in a
jubilee, and others only once in eternity. Again, Israel mentions The
Name after two words, as it is said (Deut. vi. 4), "Hear Israel,
Yehovah," but the ministering angels do not mention The Name till after
three, as it is written (Isa. vi. 3), "Holy! holy! holy! Yehovah
Zebaoth." Moreover, the ministering angels do not take up the song above
till Israel has started it below; for it is said (Job xxxviii. 7), "When
the morning stars sang together, then all the sons of God shouted for
THE TALMUD, _Chullin_, fol. 91, col. 2.