C. F. Keil and Franz Delitzsch on Isaiah 14:28

Isa 14:28

This is one of the prophecies the date of which is fixed in Isa 14:28. “In the year of the death of king Ahaz the following oracle was uttered.” “The year of the death of king Aha”Z was (as in Isa 6:1) the year in which the death of Ahaz was to take place. In that year the Philistines still remained in those possessions, their hold of which was so shameful to Judah, and had not yet met with any humiliating retribution. But this year was the turning-point; for Hezekiah, the successor of Ahaz, not only recovered the cities that they had taken, but thoroughly defeated them in their own land (2Ki 18:8).