'Business' in the Bible

So Saul sent him away, and made him a captain over a thousand; and he went about his business before the people.

And on the third day it will be specially noted, and you will go to the place where you took cover when the other business was in hand, waiting by the hill over there.

And David said to Ahimelech the priest, The king has given me orders and has said to me, Say nothing to anyone about the business on which I am sending you and the orders I have given you: and a certain place has been fixed to which the young men are to go.

And David said to Ahimelech, Have you no sword or spear with you here? for I have come without my sword and other arms, because the king's business had to be done quickly.

Now there was a man in Maon whose business was in Carmel; he was a great man and had three thousand sheep and a thousand goats: and he was cutting the wool of his sheep in Carmel.