1 Peter 2:2

and said, “Truly I say to you, unless you are converted and become like children, you will never enter the kingdom of heaven.

But Jesus said, “Let the children alone, and do not hinder them from coming to Me; for the kingdom of heaven belongs to such as these.”

“Truly I say to you, whoever does not receive the kingdom of God like a child will not enter it at all.”

“Truly I say to you, whoever does not receive the kingdom of God like a child will never enter it.”

I gave you milk to drink, not solid food, for you were not yet able to receive it. Indeed, even now you are still not able,

Brothers, do not be children in your thinking; rather in evil be infants, but in your thinking be mature.

For though by this time you ought to be teachers, you have need again for someone to teach you the elementary principles of the oracles of God, and you have come to need milk and not solid food.

For everyone who partakes only of milk is not accustomed to the word of righteousness, for he is an infant.