'Babes' in the Bible

and they said to Him, “Do You hear what these children are saying?” And Jesus replied to them, “Yes; have you never read [in the Scripture], ‘Out of the mouths of infants and nursing babies You have prepared and provided praise for Yourself’?”

In that very hour He was overjoyed and rejoiced greatly in the Holy Spirit, and He said, “I praise You, O Father, Lord of heaven and earth, that You have hidden these things [relating to salvation] from the wise and intelligent, and have revealed them to infants [the childlike and untaught]. Yes, Father, for this way was [Your gracious will and choice, and was] well-pleasing in Your sight.

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].