2:7. And she laid him in the manger.
He found man reduced to the level of the beasts: therefore is He placed like fodder in a manger, that we, having left off our bestial life, might mount up to that degree of intelligence which befits man's nature; and whereas we were brutish in soul, by now approaching the manger, even His own table, we find no longer fodder, but the bread from heaven, which is the body of life.
St. Cyril of Alexandria, Commentary on Luke, Sermon 1