Apostolic Constitutions ca. 1st-4th cent.
Let these canonical rules be established by us for you, O you bishops; and if you continue to observe them, you shall be saved, and shall have peace; but if you be disobedient, you shall be punished, and have everlasting war one with another, and undergo a penalty suitable to your disobedience. (Bk. 8 Epilogue)