New Living Translation
What happened to him was a sign to the people of Nineveh that God had sent him. What happens to the Son of Man will be a sign to these people that he was sent by God.

American Standard Version
For even as Jonah became a sign unto the Ninevites, so shall also the Son of man be to this generation.

Berean Study Bible
For as Jonah was a sign to the Ninevites, so the Son of Man will be a sign to this generation.

Douay-Rheims Bible
For as Jonas was a sign to the Ninivites; so shall the Son of man also be to this generation.

English Revised Version
For even as Jonah became a sign unto the Ninevites, so shall also the Son of man be to this generation.

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

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

Young's Literal Translation
for as Jonah became a sign to the Ninevites, so also shall the Son of Man be to this generation.

Luke 11:30 Additional Translations ...