Colossians 3:15

And let the peace of God rule in your hearts, to the which also ye are called in one body; and be ye thankful.
To me, this means to be thankful for who we are in Christ Jesus. He gives us life and provides for our needs! We are called to be thankful no matter which situation is placed in our life. If we can be content with what we have, then peace will be in our hearts and the glory of God will shine through to other people around us.