Is “speaking mysteries” to God a good thing? No!

Are we guaranteed physical healing because of the cross? How can we share the gospel as an “elevator pitch”? 1 Corinthians 14 contains two challenging verses (v.2 and v.4). How do you explain those if there is no private prayer language? Should I expect to hear the gospel regularly in church? Why do you think so many teach the New Testament “warning passages” in a way that scares believers?