Marcos 9

Marcos 9:42

Remember the words of our Lord Jesus Christ, how He said, "Woe to that man [by whom offenses come]! It were better for him that he had never been born, than that he should cast a stumbling-block before one of my elect. Yea, it were better for him that a millstone should be hung about [his neck], and he should be sunk in the depths of the sea, than that he should cast a stumbling-block before one of my little ones." Your schism has subverted [the faith of] many, has discouraged many, has given rise to doubt in many, and has caused grief to us all. And still your sedition continues. — Letter to the Corinthians (Clement)