[FOOTNOTE *]: Isa 9:6; LXX., or "...Angel of Great Counsel..."
Even as late as the Council of Chanceldon the tradition of calling Christ an Angel continued in some form or degree:
Encouraging faith in the very words of Isiah 9:6 LXX when writing against Nestorious:
COUNCIL OF CHALCEDON (A.D. 451): “...read with faith the words of the same prophet, Unto us a Child has been born, unto us a Son has been given, whose power is on his shoulder; and they shall call his name Angel of great counsel, Wonderful, Counsellor, Strong God, Prince of Peace, Father of the age to come...” - (Extracts from the Acts: Session II Continued. Translated by Henry Percival. From Nicene and Post-Nicene Fathers, Second Series, Vol. 14. Edited by Philip Schaff and Henry Wace. (Buffalo, NY: Christian Literature Publishing Co., 1900.)