For it happened, when the flame went up toward the sky from off the altar, that the angel of Yahweh ascended in the flame of the altar: and Manoah and his wife looked on; and they fell on their faces to the ground.
and Manoah and his wife looked on it; on the flame and smoke, and the angel in it as he ascended; just as the disciples of Christ looked steadfastly on him as he went up to heaven, when a cloud received him out of their sight, Acts 1:9