2 Samuel 1:18

And bade them teach the children of Judah Among whom he now was, and over whom he first reigned; the use of the bow While he made lamentation for the dead, he did not neglect the living: that they might be provided with better means to defend themselves, as the king designed of God to reign over them, he ordered that they should immediately learn to be skilful in the use of bows and arrows, by which principally the Philistines had gained this victory. The Israelites seem hitherto to have chiefly used slings, spears, and swords; but were now taught to shoot with bows and arrows. As, however, the words, the use of, are not in the original, but literally translated it is, He bade them teach the children of Judah the bow; many learned men are of opinion that it was not the use of the bow, which they were to learn, but this song of David, termed The Bow. There does not appear, however, to be any proof that this song bore any such title, nor is any sufficient reason given why it should bear any such. It seems much more probable, for the reason just named, that our translators have given us the true interpretation of the passage. Behold it is written in the book of Jasher That David enjoined the use of the bow to be taught. It is more largely and particularly described there. Or, if The Bow meant this song, the sense is, that the song was recorded in that book, which some think to have been a book of odes and hymns, in which were recited the successes or misfortunes of the Israelites in battle.