'Service' in the Bible
He appointed, according to the ordinance of David his father, the divisions of the priests to their service, and the Levites to their offices, to praise, and to minister before the priests, as the duty of every day required; the doorkeepers also by their divisions at every gate: for so had David the man of God commanded.
"Your father made our yoke grievous: now therefore make you the grievous service of your father, and his heavy yoke which he put on us, lighter, and we will serve you."
Nevertheless they shall be his servants, that they may know my service, and the service of the kingdoms of the countries."
The king and Jehoiada gave it to such as did the work of the service of the house of Yahweh; and they hired masons and carpenters to restore the house of Yahweh, and also such as worked iron and brass to repair the house of Yahweh.
Also the burnt offerings were in abundance, with the fat of the peace offerings, and with the drink offerings for every burnt offering. So the service of the house of Yahweh was set in order.
Hezekiah spoke comfortably to all the Levites who had good understanding [in the service] of Yahweh. So they ate throughout the feast for the seven days, offering sacrifices of peace offerings, and making confession to Yahweh, the God of their fathers.
Hezekiah appointed the divisions of the priests and the Levites after their divisions, every man according to his service, both the priests and the Levites, for burnt offerings and for peace offerings, to minister, and to give thanks, and to praise in the gates of the camp of Yahweh.
besides those who were reckoned by genealogy of males, from three years old and upward, even everyone who entered into the house of Yahweh, as the duty of every day required, for their service in their offices according to their divisions;
In every work that he began in the service of the house of God, and in the law, and in the commandments, to seek his God, he did it with all his heart, and prospered.
Also they were over the bearers of burdens, and set forward all who did the work in every kind of service: and of the Levites there were scribes, and officers, and porters.
He set the priests in their offices, and encouraged them to the service of the house of Yahweh.
So the service was prepared, and the priests stood in their place, and the Levites by their divisions, according to the king's commandment.
The singers the sons of Asaph were in their place, according to the commandment of David, and Asaph, and Heman, and Jeduthun the king's seer; and the porters were at every gate: they didn't need to depart from their service; for their brothers the Levites prepared for them.
So all the service of Yahweh was prepared the same day, to keep the Passover, and to offer burnt offerings on the altar of Yahweh, according to the commandment of king Josiah.