Jonah spent “three days and three nights” in the fish (Jonah 1:17). But if the normal sequence of Passion Week is correct (see on 26:17–30), Jesus was in the tomb only about thirty-six hours. Since they included parts of three days, by Jewish reckoning Jesus was buried “three days” or, to put it another way, he rose “on the third day” (16:21). But this does not cover more than two nights. Some advocate a Wednesday crucifixion date (see on 26:17); but though that allows for “three days and three nights,” it runs into difficulty with “on the third day.” In rabbinical thought a day and a night make an ōnâh, and a part of an ōnâh is as the whole (cf. SBK, 1:649, for references; cf. further 1 Sam 30:12–13; 2 Chronicles 10:5, 12; Esth 4:16; 5:1). Thus according to Jewish tradition, “three days and three nights” need mean no more than “three days” or the combination of any part of three separate days.