“and he ordered that the sons of Judah be taught the Song of the Bow. It is written in the Book of Jashar:”
2 Samuel 1:18 (BSB)
Context Reading
16For David had said to the Amalekite, “Your blood be on your own head because your own mouth has testified against you, saying, ‘I killed the LORD’s anointed.’” 17Then David took up this lament for Saul and his son Jonathan, 18and he ordered that the sons of Judah be taught the Song of the Bow. It is written in the Book of Jashar: 19“Your glory, O Israel, lies slain on your heights. How the mighty have fallen! 20Tell it not in Gath; proclaim it not in the streets of Ashkelon, lest the daughters of the Philistines rejoice, and the daughters of the uncircumcised exult.