Matthew 5:16
Let your light so shine before the eyes of your fellow men, that, seeing your good actions, they may praise your Father who is in Heaven.
Luke 12:15
And then he added: "Take care to keep yourselves free from every form of covetousness; for even in the height of his prosperity a man's true Life does not depend on what he has."
Ephesians 5:15
Take great care, then, how you live--not unwisely but wisely,
Philippians 2:15
So as to prove yourselves blameless and innocent-- 'faultless children of God, in the midst of an evil-disposed and perverse generation,' in which you are seen shining like stars in a dark world,
Colossians 4:5
Show tact in your behavior to the outside world, making the most of every opportunity.