For this reason we don’t lose heart. Even if our outer humanity is decaying, our inner humanity is being renewed day by day. This slight momentary trouble of ours is working to produce a weight of glory, passing and surpassing everything, lasting forever; for we don’t look at the things that can be seen, but at the things that can’t be seen. After all, the things you can see are here today and gone tomorrow; but the things you can’t see are everlasting (2 Corinthians 4:16-18, KNT).
We look at the things that can’t be seen. That’s a religious paradox strict empiricist might choke on. But besides being poetic, it’s true, and whether the objects of our gaze are real or not, our hope in them has real sustaining power.
It’s also leads to a thought we as believers ought to remember: We are, in the end, talking about Someone invisible. Why balk at the idea that some folks don’t believe?