2 Samuel 1:18

And he gave orders to teach it the sons of Juda: behold, it is written in the book of Right.

(Also he bade them teach the children of Judah the use of the bow: behold, it is written in the book of Jasher.)

(and he commanded them to teach the children of Judah the song of the bow; behold, it is written in the book of Jashar):