Gregory the Great, on Song 2:6

“His left hand is under my head, and his right hand shall embrace me.”

“But we must note what it means that the angel is seen sitting on the right side. For what is designated by the left except the present life, and what by the right except eternal life? Hence it is written in the Song of Songs: "His left hand is under my head, and his right hand shall embrace me." Since therefore our Redeemer had already passed beyond the corruption of the present life, rightly the angel who had come to announce his eternal life was sitting on the right.”

Imported from an open dataset — not yet checked against the printed edition.