English Standard Version
"Whoever causes one of these little ones who believe in me to sin, it would be better for him if a great millstone were hung around his neck and he were thrown into the sea.New International Version
"And if anyone causes one of these little ones who believe in me to sin, it would be better for him to be thrown into the sea with a large millstone tied around his neck.Catholic Public Domain Version
And whoever will have scandalized one of these little ones who believe in me: it would be better for him if a great millstone were placed around his neck and he were thrown into the sea