And where did they prostrate themselves [these thirteen times]? Four in the north, four in the south, three in the east, and two in the west, opposite [the] thirteen gates:  The southern gates, adjacent to the west: the Upper Gate, the Kindling Gate, the Firstlings’ Gate, the Water Gate. And why was it called the Water Gate? Because through it they would bring the flagon of water for the libation on Succos.  R’ Eliezer ben Yaakov says: Through it the waters trickle and they are des-tined to issue forth from beneath the threshold of the Temple.  Opposite these [southern gates], on the north, adjacent to the west: Yechaniah’s Gate, the Offering Gate, the Women’s Gate, the Music Gate. And why was it called Yechaniah’s Gate? Because through it [King] Yechaniah went to his exile.  In the east: Nikanor’s Gate, which had two wickets: one to its right and one to its left.  And two [gates] in the west, which were unnamed.