Luke 11:30

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

Jonah 1:17

And the Lord made ready a great fish to take Jonah into its mouth; and Jonah was inside the fish for three days and three nights.

Jonah 2:10

And at the Lord's order, the fish sent Jonah out of its mouth on to the dry land.

Jonah 3:2-10

Up! go to Nineveh, that great town, and give it the word which I have given you.

Matthew 12:40-42

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

Luke 24:46-47

And he said to them, So it is in the Writings that the Christ would undergo death, and come back to life again on the third day;

Treasury of Scripture Knowledge

Summary

For as Jonas was a sign unto the Ninevites, so shall also the Son of man be to this generation.

Bible References

General references

Luke 24:46
And he said to them, So it is in the Writings that the Christ would undergo death, and come back to life again on the third day;
Jonah 1:17
And the Lord made ready a great fish to take Jonah into its mouth; and Jonah was inside the fish for three days and three nights.
Jonah 2:10
And at the Lord's order, the fish sent Jonah out of its mouth on to the dry land.
Jonah 3:2
Up! go to Nineveh, that great town, and give it the word which I have given you.
Matthew 12:40
For as Jonah was three days and three nights in the stomach of the great fish, so will the Son of man be three days and three nights in the heart of the earth.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain