a ‘And he arose and took the young child and his mother by night, and departed into Egypt, and was there until the death of Herod.'
Obediently Joseph did as he was told, and taking the young child and His mother by night, fled to Egypt. Egypt had always provided a place of refuge for Israel in times of danger, and indeed over a million Jews lived there at that time. It had sheltered Israel in the days of the previous Joseph as described in Genesis, it would do the same for the hope of Israel now. Note how Jesus is treading the same path as Israel trod, as He takes refuge in Egypt.