Nehemiah 3:21

After him Meremoth the son of Uriah, the son of Hakkoz, repaired another [eastern] section, from the door of Eliashib’s house as far as the end of his house.

Ezra 2:61

Of the sons of the priests: the sons of Hobaiah, of Hakkoz, and of Barzillai, who took a wife from the daughters of Barzillai the Gileadite, and he was known by their name.

Nehemiah 7:63

Of the priests: the sons of Hobaiah, the sons of Hakkoz, and the sons of Barzillai, who [was so named because he had] married one of the daughters of Barzillai, the [well-known] Gileadite, and was named after them.

Treasury of Scripture Knowledge

Summary

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.

Bible References

Koz

Nehemiah 7:63
Of the priests: the sons of Hobaiah, the sons of Hakkoz, and the sons of Barzillai, who [was so named because he had] married one of the daughters of Barzillai, the [well-known] Gileadite, and was named after them.
Ezra 2:61
Of the sons of the priests: the sons of Hobaiah, of Hakkoz, and of Barzillai, who took a wife from the daughters of Barzillai the Gileadite, and he was known by their name.