²⁰Dear brothers and sisters, don’t be childish in your understanding of these things. Be innocent as babies when it comes to evil, but be mature in understanding matters of this kind. ²¹It is written in the Scriptures#14:21a Greek in the law.:“I will speak to my own peoplethrough strange languagesand through the lips of foreigners.But even then, they will not listen to me,”#14:21b Isa 28:11-12.says the Lord. ²²So you see that speaking in tongues is a sign, not for believers, but for unbelievers. Prophecy, however, is for the benefit of believers, not unbelievers. ²³Even so, if unbelievers or people who don’t understand these things come into your church meeting and hear everyone speaking in an unknown language, they will think you are crazy. ²⁴But if all of you are prophesying, and unbelievers or people who don’t understand these things come into your meeting, they will be convicted of sin and judged by what you say. ²⁵As they listen, their secret thoughts will be exposed, and they will fall to their knees and worship God, declaring, “God is truly here among you.”