Ten things were created during the twilight of the first Sabbath-eve. These were: — The well that followed Israel in the wilderness, the manna, the rainbow, the letters of the alphabet, the stylus, the tables of the law, the grave of Moses, the cave in which Moses and Elijah stood, the opening of the mouth of Balaam's ass, the opening of the earth to swallow the wicked (Korah and his clique). Rav Nechemiah said, in his father's name, also fire and the mule. Rav Yosheyah, in his father's name, added also the ram which Abraham offered up instead of Isaac, and the Shameer. Rav Yehudah says the tongs also, etc