"I WILL HEAR THE HEAVENS."
The heavens or clouds call on the Lord to fill them with rain.
"AND THEY SHALL HEAR THE EARTH:"
The earth again calls on the clouds to send down their showers, so that it may bring forth its fruits.
"AND THE EARTH SHALL 'WEAR THE CORN, AND THE WINE, AND THE OIL."
The corn-field, the vine, and the olive tree, call on the earth to give them strength to bear fruit.
"AND THEY SHALL HEAR JEZREEL."
And, lastly, Jezreel, or the seed of God (Israel), calls on the fruits of the earth to sustain and to cheer them.