“King David left Asaph and his kinsfolk there before the ark of the covenant of Yahweh to minister regularly before the ark as each day required. Obed-edom and his sixty-eight kinfolk were there also. Obed-edom, the son of Jeduthun, and Hosah were to be gatekeepers.”
The singer and cantor Asaph was to be in charge of the Ark of the Covenant on a regular basis. However, Obed-edom and 68 of his relatives were there also. The gatekeepers were to be Obed-edom, who had the Ark of the Covenant in his house before it came to Jerusalem, and Hosah, who was a Merari Levite.