'Little Ones' in the Bible

And whoever gives one of these little ones just a cup of cold water to drink because he is a disciple, truly I tell you he will in no way lose his reward."

but whoever causes one of these little ones who believe in me to stumble, it would be better for him that a huge millstone should be hung around his neck, and that he should be sunk in the depths of the sea.

See that you do not despise one of these little ones, for I tell you that in heaven their angels always see the face of my Father who is in heaven.

Even so it is not the will of my Father who is in heaven that one of these little ones should perish.