The Enzymes That Never Stop Repairing

Every day, the DNA inside each of your cells sustains between ten thousand and one hundred thousand points of damage. Ultraviolet light, the oxygen you breathe, even the normal chemistry of being alive — all of it chips away at the molecular blueprint that holds you together. By every measure, your cells should collapse under the assault.

But they don't. God wove into every living cell an elaborate system of repair enzymes that patrol your DNA around the clock, locating breaks, snipping out errors, and stitching the strands back together with breathtaking precision. Swedish chemist Tomas Lindahl spent decades studying this process, and in 2015 he shared the Nobel Prize in Chemistry with Paul Modrich and Aziz Sancar for revealing just how relentless these molecular repair crews are. Without them, life as we know it would be impossible.

Here is what strikes me: perseverance is not the absence of damage. It is the faithful, quiet work of repair. Your cells do not give up because they never get broken. They persist because something inside them keeps fixing what breaks.

The Apostle Paul understood this at the deepest level: "We are hard pressed on every side, but not crushed; perplexed, but not in despair; persecuted, but not abandoned; struck down, but not destroyed" (2 Corinthians 4:8-9).

You will sustain damage in this life — ten thousand wounds some days. But the God who designed repair into the very fabric of your cells has not left your spirit without the same provision. His mercies are new every morning. The repair never stops.