1 At that time the disciples came to Jesus, saying, “Who then is greatest in the kingdom of heaven?” 2 Then Jesus called a little child to Him, set him in the midst of them, 3 and said, “Assuredly, I say to you, unless you are converted and become as little children, you will by no means enter the kingdom of heaven. 4 Therefore whoever humbles himself as this little child is the greatest in the kingdom of heaven.” (Matthew 18:1–4, NKJV)
Greatness in the kingdom of heaven is not defined by prominence above others, or by power over others, or by preference before others. Greatness is defined by humility, such as is seen in a little child. By these words, Jesus thoroughly rejects the notion that we are born with a “sin nature,” a corruption that originated in Adam and is transmitted through his progeny to all of humanity. If we must “be converted and become as little children,” then little children do not possess corrupt hearts. Otherwise, Jesus’ analogy is meaningless. The child stands as the prototype for greatness in the kingdom. Those who are great in the kingdom are not driven by a sin nature. Like children, they are driven by the innocence of humility. Any doctrine that corrupts the innocence and humility of children before God and mankind is false and deplorable error.