Thematic Bible: Natural rocks sometimes used as

And Gideon went and prepared {a young goat} and unleavened cakes [from] an ephah of flour; he put meat in a basket, and the broth he put in a pot, and he brought [them] to him under the oak and presented [them]. The angel of God said to him, "Take the meat and the unleavened cakes and put [them] on this rock; pour the broth [over it]." And he did so. Then the angel of Yahweh reached out the tip of the staff that [was] in his hand, and he touched the meat and the unleavened cakes; and fire went up from the rock and consumed the meat and the unleavened cakes. And the angel of Yahweh went {from his sight}.

And Manoah took the {young goat} and the grain offering, and he offered [it] to Yahweh on the rock, to the one who performs miracles. And Manoah and his wife [were] watching. And when the flame went up toward the heaven from the altar, the angel of Yahweh went up in the flame of the altar to heaven while Manoah and his wife [were] watching. And they fell on their faces to the ground.