'Doing' in the Bible

But Aaron and his sons made offerings on the altar of burned offering, and on the altar of perfume, for all the work of the most holy place, and to take away the sin of Israel, doing everything ordered by Moses, the servant of God.

And their brothers, heads of their families, a thousand and seven hundred and sixty: able men, doing the work of the house of God.

Then David said to God, Great has been my sin in doing this; but now, be pleased to take away the sin of your servant, for I have done very foolishly.

Their place was by the side of the sons of Aaron in all the work of the house of the Lord, in the open spaces and in the rooms, in the making clean of all the holy things, in doing all the work of the house of the Lord,