some questions about old testament

1. Isaiah 9 has a prophecy that contains 4 titles that are often attributed to Jesus. Explain this for its original hearer
2. If chapter 2 and 3 of Genesis are written during the exile, please explain how this story connects to Israel’s story.
3. Explain the role of prophet, priest and king and how Jesus fulfills what these only partially accomplished. Be sure you mention covenant and mediation at the very least

1 paragraph answers for each question

no longer than a page.