Psalm 127:3
Lo, children are an heritage of the Lord: and the fruit of the womb is his reward.

Matthew 18:10
Take heed that ye despise not one of these little ones; for I say unto you, That in heaven their angels do always behold the face of my Father which is in heaven.

Clint Holmes - Playground In My Mind

http://www.youtube.com/watch?v=6pcIi1X_OKc&feature=player_detailpage

Mark 10:14
But when Jesus saw it, he was much displeased, and said unto them, Suffer the little children to come unto me, and forbid them not: for of such is the kingdom of God.