“To the pure, all things are pure, but to those who are corrupted and do not believe, nothing is pure. In fact, both their minds and consciences are corrupted.” (Titus 1:15 NIV)
It’s frustrating trying to convince a cynic of truth. Arguing that the Bible really is pure and True and not some centuries-old gimmick to a non-believer is like trying to convince the recently-dumped or soon-to-be divorced that Love is the same.
While Paul doesn’t offer any advice for clearing that hurdle, this excerpt from his letter to Titus does explain it. “To the pure, all things are pure,” he says. It’s easy to believe in love when you’re loved, in other words. Just as Christ’s honest love and sacrifice is plain as day to anyone who’s accepted them. But everyone else, whose “minds and consciences are corrupted”, projects their own wickedness on the rest of the world. It’s the same reason a crook thinks everyone’s out to get him.
This also explains why it’s so easy to get caught in a downward spiral of “spiritual funk”. One day of wallowing in self-pity and doubt, and suddenly everything around you confirms your worst suspicions. Once you’ve started doubting yourself or God or anyone/anything else, it’s hard to start believing again.