Conversation so far:
What is the significance of Jonah in judaism?
Jonah is one of the twelve minor prophets included in the Tanakh.
Why is Jonah being one of the twelve minor prophets included in the Tanakh important in judaism?
The Book of Jonah is read every year, in its original Hebrew and in its entirety, on Yom Kippur, as the Haftarah at the afternoon mincha prayer.
How else is Jonah important in Judiasm?
In Judaism, the story of Jonah represents the teaching of teshuva.
Is Jonah representing the teaching of teshuva in judaism relevant to other teachings?
Teshuva – the ability to repent and be forgiven by God – is a prominent idea in Jewish thought.

Question: What is significant about this?
Self-contained rewrite: What is significant about Teshuva – the ability to repent and be forgiven by God as a prominent idea in Jewish thought?