And the Lord turned to him and said, “Go in this might of yours and save Israel from the hand of Midian; do not I send you?” And he said to him, “Please, Lord, how can I save Israel? Behold, my clan is the weakest in Manasseh, and I am the least in my father's house.” And the Lord said to him, “But I will be with you, and you shall strike the Midianites as one man.” And he said to him, “If now I have found favor in your eyes, then show me a sign that it is you who speak with me. Please do not depart from here until I come to you and bring out my present and set it before you.” And he said, “I will stay till you return.”

So Gideon went into his house and prepared a young goat and unleavened cakes from an ephah of flour. The meat he put in a basket, and the broth he put in a pot, and brought them to him under the terebinth and presented them. And the angel of God said to him, “Take the meat and the unleavened cakes, and put them on this rock, and pour the broth over them.” And he did so. Then the angel of the Lord reached out the tip of the staff that was in his hand and touched the meat and the unleavened cakes. And fire sprang up from the rock and consumed the meat and the unleavened cakes. And the angel of the Lord vanished from his sight. Then Gideon perceived that he was the angel of the Lord. And Gideon said, “Alas, O Lord God! For now I have seen the angel of the Lord face to face.” But the Lord said to him, “Peace be to you. Do not fear; you shall not die.” Then Gideon built an altar there to the Lord and called it, The Lord Is Peace. To this day it still stands at Ophrah, which belongs to the Abiezrites. (ESV)