For afore the harvest. God can rest thus tranquil, because he can step in at any time; and this he is about to do, before Assyria reaps her harvest. When the bud is perfect, etc.; rather, when the blossom is past, and the green grape is becoming a ripening bunch.
He shall cut off (comp. Isaiah 10:33, Isaiah 10:34). The metaphor is slightly varied in this place, to suit the imagery of the preceding clause, where Assyria has been represented as a vine-stock. Formerly her "boughs" were to be "lopped;" now her "branches" and "sprigs" or "sprouts" are to be cut away with pruning-hooks.