'Second' in the Bible

On the second day of the month the family leaders met with Ezra the scribe, together with all the people, the priests, and the Levites, to consider the words of the law.

Mattaniah son of Mica, the son of Zabdi, the son of Asaph, the praise leader who led in thanksgiving and prayer; Bakbukiah, second among his colleagues; and Abda son of Shammua, the son of Galal, the son of Jeduthun.

The second choir was proceeding in the opposite direction. I followed them, along with half the people, on top of the wall, past the Tower of the Ovens to the Broad Wall,