According to the chronicler, this verse tells us about a man named Azariah who was in charge of God's house, and it mentions his family members who were important priests before him. It shows us how important family and helping in God's house were to them.
1 Chronicles 9:11: And Azariah the son of Hilkiah, the son of Meshullam, the son of Zadok, the son of Meraioth, the son of Ahitub, the ruler of the house of God; [Azariah: also called, Seraiah]
Nehemiah 11:11 lists Seraiah instead of Azariah as the chief officer of the house of God, which contradicts 1 Chronicles 9:11 that mentions Azariah.
Nehemiah 11:11: Seraiah the son of Hilkiah, the son of Meshullam, the son of Zadok, the son of Meraioth, the son of Ahitub, [was] the ruler of the house of God.