Matthew 18:6
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.
Jesus protects vulnerable believers. “Little ones who believe” are not disposable; leading them into sin is worse than a drowning death.
Grace that receives the weak also binds the strong. God sincerely warns against stumbling others—responsibility is authentic, and enabling grace presses us to repent of careless influence rather than shrug it off.
Christ’s millstone saying is not hyperbole for shock alone; it measures how precious believing little ones are to Him.
The warning lands with holy fear. Left to ourselves we exploit the weak; only a Spirit-wrought love for Christ’s flock takes this threat with the seriousness Jesus intends.