'Little Children' in the Bible

They are like children sitting in the market place and calling to one another, and saying, ‘We played the flute for you [pretending to be at a wedding], and you did not dance; we sang a dirge [pretending to be at a funeral], and you did not weep [so nothing we did appealed to you].’

In that same hour Jesus rejoiced in the Holy Spirit, and said, "I thank you, O Father, Lord of heaven and earth, that you have hidden these things from the wise and understanding, and revealed them to little children. Yes, Father, for so it was well-pleasing in your sight."

and he will answer from within, and say, Trouble me not, for the door is already shut, and my little children are with me in bed, I cannot arise and give you;

But Jesus called them unto him, and said, Suffer little children to come unto me, and forbid them not: for of such is the kingdom of God.