The last part of the account of Lamech (), takes the form of a brief poem, which refers back to the curse of Cain. In the poem, Lamech's stance resembles that of a supreme warrior, able to avenge himself absolutely. However, no explanation of who Lamech supposedly killed is ever given in the Tanakh. Some scholars have proposed that it is connected to the invention, contextually by Tubal-Cain, of the sword, for which reason the poem is often referred to as the Song of the Sword. The poem may originate from the mysterious Book of the Wars of the Lord, though the greater context for it is likely to remain obscure.