'Ministering' in the Bible

But as for us, the Lord is our God, and we have not abandoned (turned away from) Him. The sons of Aaron are ministering to the Lord as priests, and the Levites attend to their service.

When they had finished, they brought the rest of the money before the king and Jehoiada; and it was [melted down and] made into utensils for the house of the Lord, utensils for ministering and for burnt offerings, and bowls and utensils of gold and silver. And they offered burnt offerings in the house of the Lord continually all the days of Jehoiada.