1At that time the disciples came to Jesus and said, "2Who then is greatest in the kingdom of heaven?"
References for Matthew 18:1
And He called a child to Himself and set him before them,
References for Matthew 18:2
and said, "Truly I say to you, unless you are converted and 3become like children, you will not enter the kingdom of heaven.
References for Matthew 18:3
"Whoever then humbles himself as this child, he is the greatest in the kingdom of heaven.
"And whoever receives one such child in My name receives Me;
but 4whoever 5causes one of these little ones who believe in Me to stumble, it would be better for him to have a heavy millstone hung around his neck, and to be drowned in the depth of the sea.
References for Matthew 18:6