Matthew 12:40

For as Jonah was three days and three nights in the belly of the great fish, so the Son of Man will be three days and three nights in the heart of the earth.

Matthew 16:4

A wicked and adulterous generation seeks for a sign, but no sign shall be given to it except the sign of Jonah." So he left them and departed.

Luke 11:30

For as Jonah became a sign to the Ninevites, so also the Son of Man will be to this generation.

Treasury of Scripture Knowledge

Summary

Now the LORD had prepared a great fish to swallow up Jonah. And Jonah was in the belly of the fish three days and three nights.

General references

Bible References

In

Matthew 12:40
For as Jonah was three days and three nights in the belly of the great fish, so the Son of Man will be three days and three nights in the heart of the earth.
Matthew 16:4
A wicked and adulterous generation seeks for a sign, but no sign shall be given to it except the sign of Jonah." So he left them and departed.
Luke 11:30
For as Jonah became a sign to the Ninevites, so also the Son of Man will be to this generation.

General references

Luke 11:30
For as Jonah became a sign to the Ninevites, so also the Son of Man will be to this generation.