Romans 10:10

If you confess with your mouth the Lord Jesus and believe in your heart that God has raised Him from the dead, you will be saved. For with the heart one believes unto righteousness, and with the mouth confession is made unto salvation.

You know how the doctors have to give you the whole run-down of all possible side-effects that may result from surgery or a treatment or a medicine? You're getting ready for surgery, and the doctor is telling you that you could end up paralyzed, or you could be allergic to the latex gloves on the doctor's hands, or you could end up in a coma or dead.

Prior to Maggie's first heart surgery, the doctor was telling us about the possible complications before we signed off on okaying the operation. One of the possibilities was that her voice could be damaged or that she could even become entirely mute. "Scuse us? You're cutting on her heart, right? Her voicebox is way up in her throat. How could her voice be damaged???"

So the surgeon explained how the nerve for the voicebox goes from the brain, down into the chest of the person, wraps around the heart, and then goes back up to the voicebox. So when he's working on the heart, the main nerve to control the larynx is right there, and it's possible that it could get nicked or damaged during heart surgery.

And at that point, the surgeon lost us from the anatomy lesson and the permission to allow the surgery, and found us in awe at how the physiology dovetails with the theology found in Romans 10.