We see, at the same time, what sort of beginning the life of the Son of God had, and in what cradle he was placed. Such was his condition at his birth, because he had taken upon him our flesh for this purpose, that he might “empty himself” (Phil 2:7) on our account. When he was thrown into a stable, and placed in a manger, and a lodging refused him among men, it was that heaven might be opened to us, not as a temporary lodging, but as our eternal country and inheritance, and that angels might receive us into their abode.

—John Calvin on Luke 2:7