'Dealing' in the Bible

“The master praised the unrighteous manager because he had acted astutely. For the sons of this age are more astute than the sons of light in dealing with their own people.

If therefore you have not proved yourselves faithful in dealing with the wealth that is tainted with fraud, who will entrust to you the true good?

And if you have not been faithful in dealing with that which is not your own, who will give you that which is your own?