And he took all the gold and the silver, and all the vessels that were found in the house of God with Obededom, and the treasures of the king's house, the hostages also, and returned to Samaria. In the house of God with Obed-edom - From 1 Chronicles 26:15 we learn that to Obed-edom and his descendants was allotted the keeping of the house of Asuppim or collections for the Divine treasury.
And - the hostages - See on 2 Kings 14:14 (note).