making in all seventy bullocks (Numb. 29:12-38).
Rabbinism invested this number, seventy, and the graded diminution in
the number of altar victims, with much symbolical significance not set
forth in the law.

At the time of Christ, tradition had greatly embellished many of the
prescribed observances. Thus the "boughs of goodly trees," more
literally rendered "fruit" (Lev. 23:40), had come to be understood as
the citron fruit; and this every orthodox Jew carried in one hand, while
in the other he bore a leafy branch or a bunch of twigs, known as the
"lulab," when he repaired to the temple for the morning sacrifice, and
in the joyous processions of the day. The ceremonial carrying of water
from the spring of Siloam to the altar of sacrifice was a prominent
feature of the service. This water was mingled with wine at the altar
and the mixture was poured upon the sacrificial offering. Many
authorities hold that the bringing of water from the pool was omitted on
the last or great day of the feast, and it is inferred that Jesus had in
mind the circumstance of the omission when He cried: "If any man thirst,
let him come unto me, and drink." At night, during the progress of the
feast, great lamps were kept burning in the temple courts, and this
incident Christ may have used as an objective illustration in his
proclamation: "I am the light of the world."

For fuller account see any reliable and comprehensive Bible Dictionary,
and Josephus Ant. viii, 4:1; xv, 3:3, etc. The following is an excerpt
from Edersheim, _Life and Times of Jesus The Messiah_, vol. ii, p.
158-160: "When the Temple-procession had reached the Pool of Siloam, the
priest filled his golden pitcher from its waters. Then they went back to
the Temple, so timing it that they should arrive just as they were
laying the pieces of the sacrifice on the great altar of burnt-offering,
towards the close of the ordinary morning-sacrifice service. A threefold
blast of the priests' trumpets welcomed the arrival of the priest as he
entered through the Water Gate, which obtained its name from this
ceremony, and passed straight into the Court of the Priests....
Immediately after the 'pouring of the water,' the great 'Hallel,'
consisting of Psalms 113 to 118 inclusive, was chanted antiphonally, or
rather, with responses, to the accompaniment of the flute.... In further
symbolism of this Feast, as pointing to the ingathering of the heathen
nations, the public services closed with