If you’re like me, when you’re taking an Uber or Lyft, then you just want to get to your destination in absolute silence. It’s always a gamble to begin a conversation with a total stranger, even if it’s usually pleasant. But it would be so much worse if the Uber or Lyft driver used that opportunity—of having a captive passenger—to preach his or her religion.

Both ride-sharing companies have strict rules prohibiting religious discrimination. Drivers cannot refuse a customer, for example, who is very clearly not a member of their faith. But there’s no rule blocking drivers from proselytizing and attempting to win new converts, and Christians know it.

A recent Associated Press article focused on Lyft drivers who see their work as “mobile Christian ministries.” ...