The Midrash Tehillim told the circumstances in which Esau sought to carry out his desire that reports, "Let the days of mourning for my father be at hand; then will I slay my brother Jacob." The Midrash Tehillim interpreted "You have given me the necks of my enemies," to allude to Judah, because Rabbi Joshua ben Levi reported an oral tradition that Judah slew Esau after the death of Isaac. Esau, Jacob, and all Jacob's children went to bury Isaac, as reports, "Esau, Jacob, and his sons buried him," and they were all in the Cave of Machpelah sitting and weeping. At last Jacob's children stood up, paid their respects to Jacob, and left the cave so that Jacob would not be humbled by weeping exceedingly in their presence. But Esau reentered the cave, thinking that he would kill Jacob, as reports, "And Esau said in his heart: ‘Let the days of mourning for my father be at hand; then will I slay my brother Jacob.’" But Judah saw Esau go back and perceived at once that Esau meant to kill Jacob in the cave. Quickly Judah slipped after him and found Esau about to slay Jacob. So Judah killed Esau from behind. The neck of the enemy was given into Judah’s hands alone, as Jacob blessed Judah in saying, "Your hand shall be on the neck of your enemies." And thus David declared in "You have given me the necks of my enemies," as if to say that this was David's patrimony, since said it of his ancestor Judah.