We believe that stewardship is faithfully using whatever God gives us (opportunities, interests, skills, employment, family, talents, spiritual gifts, land, money, etc) for His glory.
It involves every facet of life, it requires a basic promise that we serve God with our whole lives.
This is what St Paul says:
We have different gifts, according to the grace given us. If a man’s gift is prophesying, let him use it in proportion to his faith. If it is serving, let him serve; if it is teaching, let him teach; if it is encouraging, let him encourage; if it is contributing to the needs of others, let him give generously; if it is leadership, let him govern diligently; if it is showing mercy, let him do it cheerfully.