Judges 13:20-22

American Standard Version

²⁰ For it came to pass, when the flame went up toward heaven from off the altar, that the angel of Jehovah ascended in the flame of the altar: and Manoah and his wife looked on; and they fell on their faces to the ground.

²¹ But the angel of Jehovah did no more appear to Manoah or to his wife. Then Manoah knew that he was the angel of Jehovah. ²² And Manoah said unto his wife, We shall surely die, because we have seen God.