1 Corinthians 14:20-22
1Co 14:20 Brothers, stop being children in your way of thinking, instead, be minors when it comes to evil, but in your way of thinking, start being mature.
1Co 14:21 Scripture says (in the Law) “By people with strange tongues and by the lips of strangers I will speak to this people, yet they will not even listen to me in this way,” says the Lord.
1Co 14:22 So then, foreign languages are a sign indicating not believers but unbelievers. Prophecy, however, is not a sign indicating unbelievers but believers.
baby talk revisited
Isaiah had difficulty getting God’s word to the nobility because they claimed that his message was too simplistic. In fact, Isaiah tried every means possible to get God’s word to them, but they were not willing to hear it. It was too easy for them to use confusion as an excuse to ignore the messenger.
Paul referred back to that passage in Isaiah 28 when he wrote to the Corinthians about their abuse of the languages. He told them that they were doing something in their services that was not edifying for believers. It would only be used by unbelievers as an excuse to ignore the gospel.
For the Corinthians, immaturity said “I have this gift, I will use it, and nobody is going to stop me.” Maturity would have said, “I have this gift (the ability to speak a foreign language) but I will only use it when it actually furthers the gospel.”
LORD, make us mature in the way we utilise your gifts.