Rabbi Cruspedai said in the name of Rabbi Yochanan: Three books are opened [in heaven] on New Year, one for the thoroughly wicked, one for the thoroughly righteous, and one for the intermediate. The thoroughly righteous are forthwith inscribed definitively in the book of life; the thoroughly wicked are forthwith inscribed definitively in the book of death; the doom of the intermediate is suspended from New Year till the Day of Atonement; if they deserve well, they are inscribed in the book of life; if they do not deserve well, they are inscribed in the book of death. (Rosh Hashana 16b)