Then little children were brought to Him
that He might put His hands on them and pray,
but the disciples rebuked them.
But Jesus said,
"Let the little children come to Me,
and do not forbid them;
for of such is the kingdom of heaven."

Matthew 19:13-14

And Jesus called a little child to Him,
set him in the midst of them, and said,
"Assuredly, I say to you, unless you are converted and
become as little children, you will by no means
enter the kingdom of heaven.
Therefore whoever humbles himself as this little child
is the greatest in the kingdom of heaven.
And whoever receives one little child
like this in My name receives Me.

But whoever causes one of these little ones
who believe in Me to sin,
it would be better for him
if a millstone were hung around his neck,
and he were drowned in the depth of the sea."

Matthew 18:2-6

Jesus said, suffer the little children, and forbid them not, to come unto me: for to such belongeth the kingdom of heaven
-Matthew 19:14