'Faithful' in the Bible

And the Lord said, Who then is the faithful and wise steward, whom his lord shall set over his household, to give them their portion of food in due season?

He that is faithful in a very little is faithful also in much: and he that is unrighteous in a very little is unrighteous also in much.

If therefore ye have not been faithful in the unrighteous mammon, who will commit to your trust the true riches ?

And if ye have not been faithful in that which is another's, who will give you that which is your own?

And he said unto him, Well done, thou good servant: because thou wast found faithful in a very little, have thou authority over ten cities.