'Affairs' in the Bible

is it not lawful for me to do what I will in my own affairs? Is thine eye evil because I am good?

whom I have sent to you for this very thing, that ye may know of our affairs and that he may encourage your hearts.

and to seek earnestly to be quiet and mind your own affairs, and work with your own hands, even as we charged you,

No one going as a soldier entangles himself with the affairs of life, that he may please him who has enlisted him as a soldier.