Genesis Rabba 41:1

…Just like the date and the cedar have desire likewise the righteous have desire; and what is their desire? Hashem, as it states (ibid. 40:2) "I have surely hoped for Hashem." Rabbi Tanchuma said, there was a story about a date-palm who stood in Chamatan without producing fruits, one male date-palm stood and saw her. He said this female date-palm looks out from Yericho, when they grafted her she would produce fruit… Just like the date-palm has no waste, rather her fruits are for eating, her hearts (lulav's) for praise (hallel), its branches for Shechach, its fiber for ropes, its boughs for measure (sieve), its rafts as beams for the house, likewise there is no waste in Israel, some are masters of Scriptures, others of Mishna, others of Talmud, others of Hagadah. Just like this date-palm and cedar, whoever goes up in them first without being careful falls and dies, likewise anyone who comes against Israel in the end will receive what he deserves from their hands. Know that Sarah since Pharaoh held her captive one night, he and his house was struck with plagues, as it states, "And Hashem struck Pharaoh with great plagues…"