#Where did the leaders of Judah go on the day of celebration?

The leaders went up to the top of the wall. [12:31]

#What were the two large choirs, that Nehemiah appointed, supposed to do?

The two large choirs were supposed to give thanks. [12:31]

#Where did the first choir go?

One choir went to the right on the wall toward the Dung Gate. [12:31]