THE FULL ARTICLE — from the International Standard Bible Encyclopedia

The International Standard Bible Encyclopedia (1915), general editor James Orr — public domain, printed whole.

fork (shelosh qilleshon):

This compound word, meaning strictly "three points" or "three prongs," is found only once (1Sa 13:21), and doubtless there refers to the agricultural tool now known as the pitchfork. It might, however, also be a weapon.