'Little Children' in the Bible

“But to what shall I compare this generation? It is like little children sitting in the market places, who call to the others,

and said, “I assure you and most solemnly say to you, unless you repent [that is, change your inner self—your old way of thinking, live changed lives] and become like children [trusting, humble, and forgiving], you will never enter the kingdom of heaven.

Then children were brought to Jesus so that He might place His hands on them [for a blessing] and pray; but the disciples reprimanded them.