Matthew 18:2-5 (New International Version)

 ²He called a little child and had him stand among them. ³And he said: "I tell you the truth, unless you change and become like little children, you will never enter the kingdom of heaven. ⁴Therefore, whoever humbles himself like this child is the greatest in the kingdom of heaven.

 ⁵"And whoever welcomes a little child like this in my name welcomes me.