
“I, for one, shall speak about those obstinate Greeks, who are with us and against us, united in faith and divided in peace, though in truth their faith may stray from the straight path.”
Ego addo et de pertinacia Græcorum, qui nobiscum sunt, et nobiscum non sunt, juncti fide, pace divisi, quanquam et in fide ipsa claudicaverint a semitis rectis.
De Consideratione http://www.binetti.ru/bernardus/10.shtml (1149-1152), lib. III (1152), c. I; Book of Considerations, part III, ch. I
"Greeks" refers to the (Eastern) Orthodox Church.