By giving us the ability to buy and sell, says Wayne Grudem, God has given us a wonderful mechanism through which we can do good for each other.
Buying and selling are activities unique to human beings out of all the creatures that God made. Rabbits and squirrels, dogs and cats, elephants and giraffes know nothing of this activity. Through buying and selling God has given us a wonderful means to bring glory to him.
We can imitate God’s attributes each time we buy and sell, if we practice honesty, faithfulness to our commitments, fairness, and freedom of choice. Moreover, commercial transactions provide many opportunities for personal interaction, as when I realize that I am buying not just from a store but from a person, to whom I should show kindness and God’s grace. In fact, every business transaction is an opportunity for us to be fair and truthful and thus to obey Jesus’ teaching: “So whatever you wish that others would do to you, do also to them, for this is the Law and the Prophets” (Matt. 7:12).