NET
18 (He gave instructions that the people of Judah should be taught “The Bow.” Indeed, it is written down in the Scroll of the Upright One.)
Darby
18 and he bade them teach the children of Judah [the song of] the bow. Behold, it is written in the book of Jasher:
KJV
18 (Also he bade them teach the children of Judah [the use of] the bow: behold, [it is] written in the book of Jasher.)