Jonasza 1:1 Komentarz: Abarbanel, Malbim & Radak

The first prophecy goes until...."And the Word of Gd came to Yonah a second time." And it has two sections. The first is "The Word of Gd came to Yonah..." and the second is "And Gd said to the fish". And I have 6 questions about this.

(1) NOW THE WORD OF THE LORD CAME UNTO JONAH - Our sages, of blessed memory, said (Jerusalem Talmud 5:1) that Jonah ben Amitai was, on his mother’s side, from the tribe of Asher, and that he was the son of the widow [of Zarephath] who sustained Elijah, and whom Elijah revived; and [our sages said further] that, on his father’s side, Jonah was from the tribe of Zebulun, as it is written in the book of Kings, “Jonah ben Amitai who was from Gath-Hepher” (2 Kings 14:25), and Gath-Hepher was in the territory of Zebulun (Joshua 19:13). And it is explained in the book of Kings (9:1-13) that Jonah was the one who anointed Jehu (Seder Olam Rabbah 18). And he prophesied to Jeroboam ben Joash (2 Kings 14:25) that he [Jeroboam] would restore the boundary of Israel from Lebo Hamath to the Sea of the Arabah. And all of this was to no avail, for Israel did not repent until they were about to go into exile at the hand of the king of Assyria; and [at this time] Assyria was already ruling over them, therefore Hashem said to him [Jonah]:

...One may ask why this prophecy was included in Scripture.  All of it concerns Nineveh, a gentile city.  It does not mention Israel.  There is no book like it among the Prophets. We might explain that it was written as an object lesson for Israel:  Here is a gentile people, not Israelites, who readily repent.  After the prophet reproves them once, they turn back from their wickedness in perfect repentance.