Matthew 12:39-40 But he answered and said unto them, An evil and adulterous generation seeketh after a sign; and there shall no sign be given it but the sign of Jonah the prophet:

ASV_Strongs⁽ⁱ⁾

39 G1161 But G3588 he G611 answered G2036 and said G846 unto them, G1074 An G4190 evil G2532 and G3428 adulterous G1074 generation G1934 seeketh after G4592 a sign; G2532 and G1325 there shall G3756 no G4592 sign G1325 be given G846 it G1487 but G3361 the G4592 sign G2495 of Jonah G4396 the prophet:

40 G1063 for G5618 as G2495 Jonah G2258 was G5140 three G2250 days G2532 and G5140 three G3571 nights G1722 in G2836 the belly G2785 of the whale; G3779 so G2071 shall G5207 the Son G444 of man G2071 be G5140 three G2250 days G2532 and G5140 three G3571 nights G1722 in G2588 the heart G1093 of the earth.