20 Brethren, do not be children in understanding; however, in malice be babes, but in understanding be mature.
20 Brothers and sisters, stop thinking like children. In regard to evil be infants, but in your thinking be adults.
20 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.
