'Childish' in the Bible

Woe to you, O land, when your king is childish, and your princes feast in the morning!

At that time Jesus said, “I praise You, Father, Lord of heaven and earth [I openly and joyfully acknowledge Your great wisdom], that You have hidden these things [these spiritual truths] from the wise and intelligent and revealed them to infants [to new believers, to those seeking God’s will and purpose].

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.

and [that you are] a corrector of the foolish, a teacher of the [spiritually] childish, having in the Law the embodiment of knowledge and of the truth—

When I was a child, I spake as a child, I understood as a child, I thought as a child: but when I became a man, I put away childish things.

Brothers, don’t be childish in your thinking, but be infants in regard to evil and adult in your thinking.