Charles Ellicott Commentary Judges 6:21

"Then the angel of Jehovah put forth the end of the staff that was in his hand, and touched the flesh and the unleavened cakes; and there went up fire out of the rock, and consumed the flesh and the unleavened cakes; and the angel of Jehovah departed out of his sight." — Judges 6:21 (ASV)

The staff that was in his hand. —The ordinary accompaniment of an Eastern traveller (Genesis 32:10; Matthew 10:10).

There rose up fire. —The common sign of God’s presence and of His acceptance of an offering (1 Kings 18:24; 1 Chronicles 21:26; 2 Chronicles 7:1). Water is brought out of the rock for the blessing of man, and fire to show the presence of God.

Departed. —It is not said, as in Judges 13:20, that he ascended in the flame.