Deuteronomy 19:5

As when a man goeth into the wood with his neighbour to hew wood, and his hand fetcheth a stroke with the axe to cut down the tree, and the head slippeth from the helve, and lighteth upon his neighbour, that he die; he shall flee unto one of those cities, and live: {head: Heb. iron} {helve: Heb. wood} {lighteth...: Heb. findeth}