2 He called a little child to him, and placed the child among them. 
3 And he said: “Truly I tell you, unless you change and become like little children, you will never enter the kingdom of heaven. 
4 Therefore, whoever takes the lowly position of this child is the greatest in the kingdom of heaven. 
5 And whoever welcomes one such child in my name welcomes me.
6 “If anyone causes one of these little ones—those who believe in me—to stumble, it would be better for them to have a large millstone hung around their neck and to be drowned in the depths of the sea.
                                                                                                                                                                                                                                                                                                                                                                                                                                 Matthew 18:2-6