'Little Ones' in the Bible

And whoever shall give to drink to one of these little ones, a cup of cold water only, in the name of a disciple, verily, I say to you, he shall in no wise lose his reward.

But whoever shall cause one of these little ones who believe in me, to sin, it were better for him that a millstone were hanged about his neck, and that he were drowned in the depth of the sea.

Take heed that ye despise not one of these little ones: for I say to you, that in heaven their angels do always behold the face of my Father who is in heaven.

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