Isaiah 28:23
23Give ear, and hear my voice! Listen, and hear my speech!
Wesley’s heading for these verses is God’s providence, its work and seasons towards the church, under the figure of a husbandman. Give ear is spoken after the scoffers’ decree (v. 22); the parable is not a riddle for later empires but a call to Judah’s generation that would not hear rest (v. 12). Attention is still required.
The voice is Isaiah’s, and the speech is plow and thresh in their own land. Grace that still speaks after the covenant with death is a sincere hearing; they may yet cease from the mock.
Calvin: Isaiah makes use of a preface, as if he were about to speak of something important and very weighty; we are not wont to demand attention unless we are about to say what is very important. And yet he seems to speak of common agriculture—sowing, thrashing, and such like. The Prophet intended to direct minds to higher matters: the judgments of God, and with what wisdom God governs the world, though wicked men think everything moves by chance.
Men are dull in not understanding works so manifest, yet rash to censure what is hidden. The church hears a preface to Judah.”