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
joy."

_Chullin_, fol. 91, col. 2.

The Rabbis have taught, a man should not sell to his neighbor shoes made
from the hide of a beast that has died of disease, as if of a beast that
had been slaughtered in the shambles, for two reasons: first, because he
imposes on him (for the skin of a beast that dies of itself is not so
durable as the hide of a slaughtered animal); second, because there is
danger (for the beast that died of itself might have been stung by a
serpent, and the poison remaining in the leather might prove fatal to
the wearer of shoes made of that leather). A man should not send his
neighbor a barrel of wine with oil floating upon its surface; for it
happened once that a man did so, and the recipient went and invited his
friends to a feast, in the preparation of which oil was to form a chief
ingredient; but when the guests assembled, it was found out that the
cask contained wine, and not oil; and because the host had nothing else
in preparation for a worthy feast, he went and committed suicide.
Neither should guests give anything from what is set before them to the
son or daughter of their host, unless the host himself give them leave
to do so; for it once happened during a time of scarcity that a man
invited three of his friends to dine, and he had nothing but three eggs