Matthew 19:13, 14.

Then children were brought to him that he might lay his hands on them and pray. The disciples rebuked the people; but Jesus said, “Let the children come to me, and do not hinder them; for to such belongs the kingdom of heaven.” In the parable of the lost sheep, Jesus referred to the children as lost sheep and it was the will of the Father that not one of these little ones should perish (Matthew 18:14)