Who was King Ahaz and when was the oracle received?
Isaiah 14:28–29 (ESV)
28In the year that King Ahaz died came this oracle:
Ahaz was a king of Judah known for his evil deeds and idol worship. He died in 727 BC. It is unclear if the prophecy was received before or after his death.
28 In the year that King Ahaz died came this oracle: