I have absolutely know idea what you are going on about - you seem to be pulling random one liners out of the air and responding to peoples posts with them. If you are going to reply directly to a persons post you may want to provide some context.
People are surprised when they study the Bible to find that it works at so many levels. Of course it requires a bit of digging to unpack all those details and it is no different here.
There are two important points to remember in this passage.
The first is that Israel is not just positioned to be saved from hell, it is being saved in order to be a blessing to the world, a huge privilege.
The second is that when a sign is given, it is normally given to only Israel, the children of God, not to dogs, Gentiles.
So when Jesus mentions Jonah, it is a prickly point for the Jews. The signs were being given to dogs by God there.
Signs are encouragement to follow God, showing His ability to lead into rest, completion, becoming blessings to the world. Israel was fed from the Rock, was shown Godś ability to carry her to her final destination, rest, becoming blessings to the world.
We ought to multi task. Multitasking is walking and chewing gum at the same time. It´s easy but we often forget to do that when we read the Bible without remembering the previous material. It´s like when you tell the child, ¨Ï want you to chew gum and walk at the same time. Start. Hey! You're walking but you forgot to chew!¨
Similarly, when we read the Bible, we have to remember the previous teachings. Joshua finally led Israel into the Promised Land, but hey! What about the promise to Abraham, about being blessing to the world? What did retrieving Israel out of Egypt and depositing her in the Promised land have to do with the promise to Abraham? If you don't ask this question, you're like the child who forgot to chew gum. It's necessary to keep all the balls in the air, else you're missing out on the message. David realised this when he said:
Psalm 95:7
For He is our God, and we are the people of His pasture, the sheep under His care. Today, if you hear His voice,
If Joshua had led Israel to becoming the blessing to the world, God would not have spoken later about another day.
This explains why Jonah disobeyed God. God was warning Nineveh. God would confirm His message with a sign. Signs were bread given to the children so that they would be edified, nourished, strengthened in their ability to follow God into becoming blessings to the world. This was upsetting. Jonah believed that Israel was special, had been singled out for the privilege of being God's instrument to bless the world. Now it seems that was not so. Gentiles were also being included.
So when Jesus says the sign of Jonah would be given, it isn't good news to the Jews. The end result in that incident was that Gentiles were blessed. It seemed that Jesus´s resurrection would have the same consequences.