'Minister' in the Bible

Then David said, "No one ought to carry the ark of God but the Levites. For Yahweh has chosen them to carry the ark of God, and to minister to him forever."

He appointed certain of the Levites to minister before the ark of Yahweh, and to celebrate and to thank and praise Yahweh, the God of Israel:

So he left there, before the ark of the covenant of Yahweh, Asaph and his brothers, to minister before the ark continually, as every day's work required;

The sons of Amram: Aaron and Moses; and Aaron was separated, that he should sanctify the most holy things, he and his sons, forever, to burn incense before Yahweh, to minister to him, and to bless in his name, forever.

Of these were the divisions of the doorkeepers, even of the chief men, having offices like their brothers, to minister in the house of Yahweh.