The human body is simply an amazing piece of God’s engineering design. It’s taken us thousands of years to figure out how God wired our bodies to function.
Take breathing, for instance—the nose and mouth are the entrance for the air into our bodies. But then what? The air has to go to the lungs. The lungs take the oxygen from the air and pass it to the red blood cells. Where do the red blood cells come from? Our bone marrow—our bones help us to breath!
These red blood cells travel all over the body giving oxygen to the other cells that need it. The red blood cells travel through a system of arteries, veins, and capillaries that, if you laid them end to end they would stretch around the Earth four times.
Of course, to get the blood cells moving, we need the heart—that amazing little pump that beats faithfully 42,000,000 times a year. Without it, the oxygen we breath in through the nose would go nowhere.
It’s amazing how the parts of our bodies are designed by God to work together. If one part does not do it’s work, what happens? We get in serious trouble. The nose, lungs, bone marrow, blood cells, and heart are all necessary for us to breath.
By the way, this is one argument against evolution. Everything has to function correctly from day one in order for the body to survive. You can’t have the lungs evolve over time, because the body wouldn’t survive for them to evolve. This argument is call irreducible complexity.
At any rate, Paul compares the body of Christ—which consists of every Christian—to the human body to make a vital point. Like with the human body, every member of Christ’s body is important, needed, and should be cared for. Turn to 1 Corinthians 12—
The first thing this passage teaches us about Christ’s body is that…