How should we view our money and property?

The command "not to steal" proves that property can belong to one person and not to another.

Do not want anything that belongs to someone else. Don’t want anyone’s house, wife or husband, slaves, oxen, donkeys or anything else. - Exodus 20:17

The Law lays out strict rules for the protection of private property, requiring restitution for property violations.

Yet God wanted some input on our property.

No land may be permanently bought or sold. It all belongs to me—it isn’t your land, and you only live there for a little while. - Leviticus 25:23

In fact, a farmer's field had to be left unplowed and unused every seventh year. Although land could be bought from others, when Jubilee came every fiftieth year, parcels of land were restored to the families from which they came. When land was sold, the transaction price was determined by how many years remained until Jubilee. 

If it is a long time before the next Year of Celebration, the price will be higher, because what is really being sold are the crops that the land can produce.- Leviticus 25:16

Every seventh year was the year of release when all debts were cancelled.  This practise prevented permanent indebtedness and servitude. 

Be careful! Don’t say to yourself, “Soon it will be the seventh year, and then I won’t be able to get my money back.” It would be horrible for you to think that way and to be so selfish that you refuse to help the poor. They are your relatives, and if you don’t help them, they may ask the Lord to decide whether you have done wrong. And he will say that you are guilty.  You should be happy to give the poor what they need, because then the Lord will make you successful in everything you do. There will always be some Israelites who are poor and needy. That’s why I am commanding you to be generous with them. - Deuteronomy 15:9-11