And he dreamed, and behold a ladder set up on the earth, and the top of it reached to heaven: and behold the angels of God ascending and descending on it.
All Commentaries on Genesis 28:12 Go To Genesis 28
Ambrose of Milan
AD 397
Jacob set out and slept—evidence of tranquility of spirit—and saw angels of God ascending and descending. This means he foresaw Christ on earth; the band of angels was descending to Christ and ascending to him, so as to render service to their rightful master in loving servitude. .