2:21

The land that had lain desolate for 70 years would now need to produce grain, sweet wine, and oil. In a poetic way, the prophecy states that these good things would appeal to the earth to release its nutrients, and the earth would ask the heavens for rain. In turn, the heavens would petition God to provide rain clouds. All of this would be for the purpose of abundantly taking care of the needs of the returning remnant.