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Be very careful, then, how you live—not as unwise but as wise, making the most of every opportunity, because the days are evil. Therefore do not be foolish, but understand what the Lord’s will is.

Ephesians  5:15 -17

Although the origin of the phrase “There is no such thing as a free lunch” is unknown, it goes to the core of economic thinking. It is one of the first concepts you learn in an introductory economics class.

For Christians, the significance of this phrase is rooted in scripture. As Ephesians 5: 15-17 tells us, God calls us to “make the most of every opportunity.” This is a call to intentionality and purpose in all that we do.

Understanding the economic principle behind “no free lunch” can help us be better stewards of all of our resources, and the choices we make between competing alternatives for our time, talent, and money.

Drs. James Gwartney, Richard Stroup, and Dwight Lee write in Common Sense Economics:

Because we cannot have as much of everything as we would like, we are forced to choose among alternatives. There is no free lunch. Doing one thing makes us sacrifice the opportunity to do something else we value. This is why economists refer to all costs as opportunity costs.

The notion of opportunity cost comes from the biblical and economic principle of scarcity. We live in a world of finite time and resources.

  • Our most scarce resource is our time.
  • No matter how much income or wealth you possess, you still only have twenty-four hours per day.
  • None of us know how many days we have on this earth.

Given the reality of scarcity, every choice we make involves the forgoing of another action or opportunity. Nobel Laureate James Buchanan describes opportunity cost this way in his treatise, Cost and Choice:

Cost does reflect pain or sacrifice; this is the elemental meaning of the word… Any opportunity within the range of possibility that must be foregone in order to select a preferred but mutually excluding alternative reflects “costs” when it is “sacrificed.”

For example, individuals who choose, as I did, to go to college after high school are foregoing a full-time job during school. If they would have worked instead of going to college, then the job represents the “opportunity cost” in this example. It was the choice that was sacrificed in order to go to school.

What is important for us to understand is that each and every choice involves a cost.

This is what the late James Buchanan was trying to highlight in the above quote. All choices involve costs, every single one. Nothing is free, nothing is without sacrifice. There is no free lunch.

As Christians, we must steward all of our resources with precision and diligence. This is what Ephesians 5: 15-17 encourages us to do – to be careful how we live, and make the most of competing opportunities. We do not have the luxury of whimsy. To be salt and light as God has called us, we must realize that even the small daily decisions that seem easy or trivial require thoughtfulness and grace.

I pray that each of us remembers this concept when thinking through our daily choices, and also that God cares about all that we do.

Do you agree there is no such thing as a free lunch? Why or why not? Leave your comments  here

Dr. Anne Bradley

About Dr. Anne Bradley

Anne Bradley, Ph.D. is Vice President of Economic Initiatives at the Institute for Faith, Work & Economics. Anne received her Ph.D. in Economics from George Mason University. She is a visiting professor at Georgetown University and has previously taught at George Mason University and at Charles University in Prague. Read More...

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  • Steve Wishart

    “There is no such thing as a free lunch” reveals a deeper reality of the universe even God himself submits to. Someone always pays. “Without the shedding of blood, there is no remission of sin.”

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