Matthew 18:5

3and said, “Most certainly I tell you, unless you turn and become as little children, you will in no way enter into the Kingdom of Heaven.

4Whoever therefore humbles himself as this little child is the greatest in the Kingdom of Heaven.

5Whoever receives one such little child in my name receives me,

6but whoever causes one of these little ones who believe in me to stumble, it would be better for him if a huge millstone were hung around his neck and that he were sunk in the depths of the sea.

7“Woe to the world because of occasions of stumbling! For it must be that the occasions come, but woe to that person through whom the occasion comes!