Verses with the word koz in the Old Testament (4 verses):

Ezra 2:61
And of the children of the priests: the children of Habaiah, the children of Koz, the children of Barzillai; which took a wife of the daughters of Barzillai the Gileadite, and was called after their name:

Nehemiah 3:4
And next unto them repaired Meremoth the son of Urijah, the son of Koz. And next unto them repaired Meshullam the son of Berechiah, the son of Meshezabeel. And next unto them repaired Zadok the son of Baana.

Nehemiah 3:21
After him repaired Meremoth the son of Urijah the son of Koz another piece, from the door of the house of Eliashib even to the end of the house of Eliashib.

Nehemiah 7:63
And of the priests: the children of Habaiah, the children of Koz, the children of Barzillai, which took one of the daughters of Barzillai the Gileadite to wife, and was called after their name.