“... We find the same shift from the general to the more specific in the two occurences of "all flesh" in Isaiah 40. In v. 5, in a salvation context where the glory of the LORD is to be revealed to "all flesh," the Targum renders to "the sons of all flesh." In vv. 6b-8, however, there is a decided shift to the more specific, this time to identify "all flesh" with the wicked. Thus the prophetic cry, in the Aramaic, becomes: All the wicked are as grass, and all their strength as the flower of the field. The grass withereth, its flower fadeth; for the wind from before the LORD hath blown upon it; therefore the wicked among the people are counted as grass. The wicked dieth, his thoughts (or, plans) perish; but the word of our God abideth for ever. All the varied imagery of the passage has been given a consistent reinterpretation: "all flesh" in v. 6 becomes "all the wicked"; "the people" of v. 7 become "the wicked among the people"; the "grass" and the "flower" of v. 8 becomes "the wicked" and "his thoughts" (or "plans"). ...”