See Bereshith Rabba, fol. 4, with reference to what is here said about Turnus Rufus and his father's grave. The proof from the necromancer lies in the allegation that his art was unsuccessful if practiced on the Sabbath-day. The Sambatyon, Rashi says, is a pebbly river which rushes along all the days of the week except the Sabbath, on which it is perfectly still and quiet. In the Machsor for Pentecost (D. Levi's ed. p. 81), it is styled "the incomprehensible river," and a footnote thereto informs us that "This refers to the river said to rest on the Sabbath from throwing up stones, etc., which it does not cease to do all the rest of the week." (See Sanhedrin, fol. 65, col. 2; Yalkut on Isaiah, fol. 3, 1; Pesikta Tanchuma. See also Shalsheleth Hakabbala and Yuchsin.) Those Israelites and Gentiles who have transgressed with their bodies (the former by neglecting to wear phylacteries, and the latter by indulging in sensuous pleasures), shall go down into Gehenna, and there be punished for twelve months, after which period their bodies will be destroyed and their soul consumed, and a wind shall scatter their ashes under the soles of the feet of the righteous; as it is said (Mal. iv. 3), "And ye shall tread down the wicked; for they shall be as ashes under the soles of your feet." But the Minim, the informers, and the Epicureans, they who deny the law and the resurrection of the dead, they who separate themselves from the manners of the congregation, they who have been a terror in the land of the living, and they who have sinned and have led the multitude astray, as did Jeroboam the son of Nebat and his companions,--these shall go down into Gehenna, and there be judged for generations upon generations, as it is said (Isa. lxvi, 24), "And they shall go forth and look upon the carcasses of the men that have transgressed against me," etc. Gehenna itself shall be consumed but they shall not be burned up in the destruction; as it is said (Ps. xlix, 14; Heb. xv.), "And their figures shall consume hell from being a dwelling." _Rosh Hashanah_, fol. 17, col. 1.