'Parching' in the Bible

“Should a wise man [such as you] utter such windy and vain knowledge [as we have just heard]And fill himself with the east wind [of withering, parching, and violent accusations]?

Ephraim feeds on the [emptiness of the] windAnd [continually] pursues the [parching] east wind [which brings destruction];Every day he multiplies lies and violence.Further, he makes a covenant with AssyriaAnd (olive) oil is carried to Egypt [to seek alliances].