Luke 11:30

New English Translation

³⁰For just as Jonah became a sign to the people of Nineveh,^[a] so the Son of Man will be a sign^[b] to this generation.^[c]

Luke 11:30 tn Grk “to the Ninevites.” What the Ninevites experienced was Jonah’s message (Jonah 3:4, 10; 4:1).
Luke 11:30 tn The repetition of the words “a sign” are not in the Greek text, but are implied and are supplied here for clarity.
Luke 11:30 tc Only the Western ms D and a few Itala mss add here a long reference to Jonah being in the belly of the fish for three days and nights and the Son of Man being three days in the earth, apparently harmonizing the text to the parallel in Matt 12:40.

New English Translation (NET)