1 Then Jonah prayed to the Lord his God from inside the fish. 2 He said,

“I cried out to the Lord in my great trouble,
and he answered me.
I called to you from the land of the dead,
and Lord, you heard me!
3 You threw me into the ocean depths,
and I sank down to the heart of the sea.
The mighty waters engulfed me;
I was buried beneath your wild and stormy waves.
4 Then I said, ‘O Lord, you have driven me from your presence.
Yet I will look once more toward your holy Temple.’

5 “I sank beneath the waves,
and the waters closed over me.
Seaweed wrapped itself around my head.
6 I sank down to the very roots of the mountains.
I was imprisoned in the earth,
whose gates lock shut forever.
But you, O Lord my God,
snatched me from the jaws of death!
7 As my life was slipping away,
I remembered the Lord.
And my earnest prayer went out to you
in your holy Temple.
8 Those who worship false gods
turn their backs on all God’s mercies.
9 But I will offer sacrifices to you with songs of praise,
and I will fulfill all my vows.
For my salvation comes from the Lord alone.”

10 Then the Lord ordered the fish to spit Jonah out onto the beach.

Jonah 2 (NLT)

38 One day some teachers of religious law and Pharisees came to Jesus and said, “Teacher, we want you to show us a miraculous sign to prove your authority.”

39 But Jesus replied, “Only an evil, adulterous generation would demand a miraculous sign; but the only sign I will give them is the sign of the prophet Jonah. 40 For as Jonah was in the belly of the great fish for three days and three nights, so will the Son of Man be in the heart of the earth for three days and three nights.

41 “The people of Nineveh will stand up against this generation on judgment day and condemn it, for they repented of their sins at the preaching of Jonah. Now someone greater than Jonah is here—but you refuse to repent.

Matthew 12:38-41 (NLT)