2 Samuel 2:16-17

And they caught every one his fellow by the head, and {thrust} his sword in his fellow's side; so they fell down together: wherefore that place was called Helkathhazzurim, which {is} in Gibeon. {Helkathhazzurim: that is, The field of strong men} And there was a very sore battle that day; and Abner was beaten, and the men of Israel, before the servants of David.