“For it came to passe, when the flame went vp toward heauen from off the altar, that the Angel of the Lord ascended in the flame of the altar: and Manoah and his wife looked on it, and fell on their faces to the ground.”
1611 King James Version (KJV)
13:20 The altar - That is, from that part of the rock which served instead of an altar, upon which the sacrifice was laid. Ascended - To manifest his nature and essence to be spiritual. Fell - Partly in reverence to that glorious presence manifested in so wonderful a manner: and partly, out of a religious horror and fear of death; for the prevention thereof they fell down in way of supplication to God.