The universe may be 13.8 billion years old while the Earth is 6,000 or so years old SIMULTANEOUSLY. If there's good science which shows that the material in the universe is really that old, our theory can accommodate it.
A Theory of Time
February 27th
The armour of light is a peace that comes with the assurance that the Bible is true, even if we don't understand it, such that SciPop (the atheist human origins narrative) isn't a threat.