'Burden' in the Bible

He assigned 70,000 of them to carry loads and 80,000 to quarry stone in the mountain, and 3,600 as overseers to make the people work.

They were also in charge of the burden bearers [who carried heavy loads], and supervised all the workmen in any kind of service; and some of the Levites were scribes and officials and gatekeepers.

To the Levites who taught all Israel and were holy to the Lord he said, “Put the holy ark in the house (temple) which Solomon the son of David king of Israel built; it shall not be a burden [carried] on your shoulders any longer. Now serve the Lord your God and His people Israel.