1 Samuel (Author Compiled by Isaiah from records of Samuel, David, Nathan, and Gad.)
17:49And David put his hand in his bag, and took thence a stone, and slang it, and smote the Philistine in his forehead, that the stone sunk into his forehead; and he fell upon his face to the earth.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.