What is stewardship?
Has someone ever asked you to watch their kids? Are you responsible for managing an office or people on behalf of an employer? Do you have a financial advisor overseeing your investments?
If you answered yes to any of these three questions, then you are or have been a steward.
In general, to steward is to manage something on someone’s behalf. Whether a family member, friend, or employer asks you to watch over something, then you're stewarding—managing—whatever they entrusted to your care.
In the Bible, stewardship is another way of talking about how you live your life. In the New Testament, the word “steward” is rooted in the Greek word “oikonomos,” which means “the manager of a household."
If you were a steward in Ancient Greek culture, you were not the owner of the house. Instead you would have been the manager of the house and the household affairs. From making sure the home was clean to managing the finances and perhaps servants, you would have managed everything on behalf of the owner.
In light of Bible verses about stewardship below, you’ll see that your life is not your own. Your life is on loan from God—regardless if you acknowledge this or not—and God calls you to steward everything about your life for his glory and the good of others.
Taken from https://get.tithe.ly/blog/stewardship-bible