'Business' in the Bible

He who goes about talking of the business of others gives away secrets: so have nothing to do with him whose lips are open wide.

Have you seen a man who is expert in his business? he will take his place before kings; his place will not be among low persons.

He who gets mixed up in a fight which is not his business, is like one who takes a dog by the ears while it is going by.

She gets wool and linen, working at the business of her hands.