I will cut off the inhabitant from Ashdod, And him who holds the scepter from Ashkelon; And I will turn my hand against Ekron; And the remnant of the Philistines will perish," says the Lord Yahweh.
So it puts him really just a little before Isaiah. Isaiah began his prophecy at the death of Uzziah. Remember in the sixth chapter, "In the year that king Uzziah died, I saw the Lord high and lifted up, sitting upon the throne, His train did fill the temple." Isaiah exercised his ministry mainly during the times of Hezekiah. So during the time of Uzziah, who was a prosperous king in Judah, reigned for fifty-two years,