Charles Ellicott Commentary Isaiah 28:4

"and the fading flower of his glorious beauty, which is on the head of the fat valley, shall be as the first-ripe fig before the summer; which when he that looketh upon it seeth, while it is yet in his hand he eateth it up." — Isaiah 28:4 (ASV)

And the glorious beauty ... —Better, And the fading flower of his glorious beauty ... shall be as the early fig before the fruit-gathering. The “early fig,” as a special delicacy (Hosea 9:10; Micah 7:1), becomes a type of the beauty and pride of Samaria, doomed to inevitable destruction. (Compare to Nahum 3:12.) Such a fig the passer-by seizes, and eagerly devours. So, the prophet says, with a Dante-like simplicity of comparison, the Assyrian king would treat Samaria.