The Path That Grows Easier

In 1949, Canadian neuropsychologist Donald Hebb proposed a principle that revolutionized our understanding of the brain: neurons that fire together wire together. Every time you repeat an action, the neural pathway carrying that signal becomes physically thicker, wrapped in more myelin, the insulating sheath that makes electrical impulses travel faster and more efficiently.

The first time you obey God in a difficult area — forgiving someone who wounded you, giving when your bank account feels thin, holding your tongue when anger flares — it feels like bushwhacking through dense forest. The neural pathway is faint. The resistance is real.

But neuroscience tells us something remarkable: each repetition strengthens the path. The myelin thickens. What once required enormous willpower begins to feel like second nature. The trail that was barely visible becomes a well-worn road.

This is exactly what the writer of Hebrews describes when speaking of the mature, "who by constant use have trained themselves to distinguish good from evil" (Hebrews 5:14). That phrase "constant use" — the Greek is hexis, a habit formed through repeated practice.

God does not ask for our obedience because He needs it. He asks because He knows how we are made. Every small act of obedience reshapes us — literally, physically — into people for whom righteousness feels less like duty and more like home.

The first step of obedience is always the hardest. The God who designed your brain made sure it would not stay that way.