"Verily I say unto you, Except ye be converted, and become as little children, ye shall not enter into the kingdom of heaven. Whosoever therefore shall humble himself as this little child, the same is greatest in the kingdom of heaven." Matthew 18:3-4
The neat thing is that even though the greatest in the kingdom of heaven is those who are humble and have child-like faith, those who are truly humble and daily live that child-like faith have no desire to be creates in the kingdom of heaven. To be great is not the goal, but to be so low that being great doesn’t matter.