'Unleavened Bread' in the Bible

Then Gideon went in and prepared a young goat and unleavened bread from an ephah of flour; he put the meat in a basket and the broth in a pot, and brought them out to him under the oak and presented them.

The angel of God said to him, “Take the meat and the unleavened bread and lay them on this rock, and pour out the broth.” And he did so.

Then the angel of the Lord put out the end of the staff that was in his hand and touched the meat and the unleavened bread; and fire sprang up from the rock and consumed the meat and the unleavened bread. Then the angel of the Lord vanished from his sight.