Rather, “the fading flower, their glorious beauty (Isa 28:1), which is on the head of the fat (fertile) valley, shall be as the early fig” [G. V. Smith]. Figs usually ripened in August; but earlier ones (Hebrew, bikkurah, Spanish bokkore) in June, and were regarded as a delicacy (Jer 24:2; Hos 9:10; Mic 7:1).
while it is yet - that is, immediately, without delay; describing the eagerness of the Assyrian Shalmaneser, not merely to conquer, but to destroy utterly Samaria; whereas other conquered cities were often spared.