<P> `` Caedite eos . Novit enim Dominus qui sunt eius . '' was allegedly spoken by Papal legate and Cistercian abbot Arnaud Amalric prior to the massacre at Béziers , the first major military action of the Albigensian Crusade . A direct translation of the Latin phrase would be `` Kill them . For the Lord knows those that are His own . '' Less formal English translations have given rise to variants such as `` Kill them all ; let God sort them out . '' Other sources give the quotation as `` Neca eos omnes . Deus suos agnoscet . '' </P>
who said kill them all let god sort them out
allegedly spoken by Papal legate and Cistercian abbot Arnaud Amalric