Author: Jeff VandersteltEven if they want to, many Christians find it hard to talk to others about Jesus. Is it possible this difficulty is because we're trying to speak a language we haven't actually spent time practicing? To become fluent in a new language, you must immerse yourself in it until you actually start to think about life through it. Becoming fluent in the gospel happens the same way―after believing it, we have to intentionally rehearse it (to ourselves…