'Waited' in the Bible

They ministered with song before the tabernacle of the Tent of Meeting, until Solomon had built the house of Yahweh in Jerusalem: and they waited on their office according to their order.

These are those who waited, and their sons. Of the sons of the Kohathites: Heman the singer, the son of Joel, the son of Samuel,

who hitherto [waited] in the king's gate eastward: they were the porters for the camp of the children of Levi.