The whale (tou kētous). Sea-monster, huge fish. In Jonah 2:1 the lxx has kētei megalōi. “Three days and three nights” may simply mean three days in popular speech. Jesus rose “on the third day” (Mat 16:21), not “on the fourth day.” It is just a fuller form for “after three days” (Mar 8:31; Mar 10:34).