Roy Moore reminds me of my rabbi. He was a predator too.

His defenders argue that not voting for Mr. Moore, and therefore losing a Republican Senate seat and possibly control of the Senate, could lead to worse outcomes for Christians than simply holding their noses and electing him to office.

They could not be more mistaken. The damage that will be done to the Republican brand and those Christians who watch their religious leaders stand by Mr. Moore will be irreversible. If he wins, the Republicans may have a reliably conservative vote in the Senate, but one thing is guaranteed: Religious leaders who defend him risk their flock being infected with the same disenchantment I was after the arrest of my rabbi.

Religious leaders often fret that such creeping faithlessness puts society at risk more than any political ideology.