Matthew 18:1-5 NIV

[1] At that time the disciples came to Jesus and asked, “Who, then, is the greatest in the kingdom of heaven?” [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.