1 Corinthians 14:20 NJKV
Brethren, do not be children in understanding; however, in malice be babes, but in understanding be mature.
As Paul discussed the proper way to handle speaking in tongues and the gifts of the spirit, he encouraged the Corinthian church to be mature in their understanding. I believe he is telling them to avoid childish thinking that would hinder them from accepting true understanding. Sometimes we are hindered from seeing the truth due to selfishness. We want something to be a certain way and so we determine to see it the way we want it. We do not want our feelings to be hurt or our flesh to be denied. Let us grow up when it comes to understanding and be mature enough to accept the truth even if we don’t like it.