brachot 29

numbers are not exact when the sun reddens
18 is 19
or sometimes it's 7, or 9, or a merciful 24
and a dangerous 13 can be just 1

18 never equals 18

unless you're a heretic


(discussion about the 18 blessings of the amidah prayer, an extra blessing was added against heretics, making it 19. 7 blessings for shabbat, 9 for rosh hashana, 24 for a fast day, and on regular days, in certain cases, the 13 middle brachot can be abridged to 1. for english translation of this talmud page see here)