1 Corinthians 14:18-20

Amplified Bible

¹⁸ I thank God that I speak in [unknown] tongues more than all of you; ¹⁹ nevertheless, in public worship I would rather say five understandable words in order to instruct others, than ten thousand words in a tongue [which others cannot understand].

Instruction for the Church

²⁰ Brothers and sisters, do not be children [immature, childlike] in your thinking; be infants in [matters of] evil [completely innocent and inexperienced], but in your minds be mature [adults].