20-25 To be perfectly frank, I’m getting exasperated with your infantile thinking. How long before you grow up and use your head—your adult head? It’s all right to have a childlike unfamiliarity with evil; a simple no is all that’s needed there. But there’s far more to saying yes to something. Only mature and well-exercised intelligence can save you from falling into gullibility. It’s written in Scripture that God said,In strange tonguesand from the mouths of strangersI will preach to this people,but they’ll neither listen nor believe.So where does it get you, all this speaking in tongues no one understands? It doesn’t help believers, and it only gives unbelievers something to gawk at. Plain truth-speaking, on the other hand, goes straight to the heart of believers and doesn’t get in the way of unbelievers. If you come together as a congregation and some unbelieving outsiders walk in on you as you’re all praying in tongues, unintelligible to each other and to them, won’t they assume you’ve taken leave of your senses and get out of there as fast as they can? But if some unbelieving outsiders walk in on a service where people are speaking out God’s truth, the plain words will bring them up against the truth and probe their hearts. Before you know it, they’re going to be on their faces before God, recognizing that God is among you.