20 As the flame blazed up from the altar toward heaven, the angel of the LORD ascended in the flame. Seeing this, Manoah and his wife fell with their faces to the ground.

Read Judges 13:20 Using Other Translations

For it came to pass, when the flame went up toward heaven 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.
And when the flame went up toward heaven from the altar, the angel of the LORD went up in the flame of the altar. Now Manoah and his wife were watching, and they fell on their faces to the ground.
As the flames from the altar shot up toward the sky, the angel of the LORD ascended in the fire. When Manoah and his wife saw this, they fell with their faces to the ground.