There is an interesting connection between the 12th century story of Excalibur with a 9th century story of Moses’s staff.
Rabbi Levi said: That staff which was created in the twilight was delivered to the first man out of the Garden of Eden. Adam delivered it to Enoch, and Enoch delivered it to Noah, and Noah to Shem. Shem passed it on to Abraham, Abraham to Isaac, and Isaac to Jacob, and Jacob brought it down to Egypt and passed it on to his son Joseph, and when Joseph died and they pillaged his household goods, it was placed in the palace of Pharaoh.
And Jethro was one of the magicians of Egypt, and he saw the staff and the letters which were upon it, and he desired it in his heart, and he took it and brought it, and planted it in the midst of the garden of his house. No one was able to approach it any more.
When Moses came to his house, he went into Jethro’s garden, and saw the staff and read the letters which were upon it, and he put forth his hand and took it. Jethro watched Moses, and said: “This one in the future will redeem Israel from Egypt.” Therefore, he gave him Tzipporah his daughter to be his wife…Midrash (Pirkei d’Rabbi Eliezer, ch. 40)
God gave the staff to Adam, who gave it to Enoch (Hanokh)—who later transformed into the angel Metatron—and Enoch passed it on further until it got to Joseph in Egypt. The Pharaoh confiscated it after Joseph’s death. The passage then alludes to another Midrashic teaching that Jethro (Yitro), Moses’ future father-in-law, was once an advisor to Pharaoh, along with Job and Bila’am (see Sanhedrin 106a). The wicked Bila’am was the one who advised Pharaoh to drown the Israelite male-born in the Nile. While Job remained silent (for which he was so severely punished later), Jethro protested the cruel decree, and was forced to resign and flee because of it. As he fled, he grabbed the divine staff with him. Arriving in Midian, his new home, Jethro stuck the staff in the earth, at which point it seemingly gave forth deep roots and was immovable.
A related Midrash states that all the suitors that sought the hand of his wise and beautiful Tzipporah were asked to take the staff out of the earth, and should they succeed, could marry Jethro’s daughter. None were worthy. (Not surprisingly, some believe that this Midrash may have been the source for the Arthurian legend of the sword Excalibur.) Ultimately, Moses arrived and effortlessly pulled the staff out of the ground.Mayim Achronim