On the morrow Laban rose early, assembled all the people of the city, and pursued Jacob with the intention of killing him when he overtook him. But the archangel Michael appeared unto him, and bade him take heed unto himself, that he do not the least unto Jacob, else would he suffer death himself. This message from heaven came to Laban during the night, for when, in extraordinary cases, God finds it necessary to reveal Himself unto the heathen, He does it only in the dark, clandestinely as it were, while He shows Himself to the prophets of the Jews openly, during daylight.
Michael in Heaven
Legends of the Jews 6:156