Matthew 18:1-4
At that time the disciples came to Jesus and said, “Who then is greatest in the kingdom of heaven?” 2 And He called a child to Himself and set him before them,3 and said, “Truly I say to you, unless you are converted and become like children, you will not enter the kingdom of heaven. 4 Whoever then humbles himself as this child, he is the greatest in the kingdom of heaven.