Zechariah 10:1

Ask ye of the Lord rain - Rain in the due seasons -

1. To impregnate the seed when sown; and

2. To fill the ear near the time of harvest - was so essential to the fertility of the land, and the well-being of the people, that it stands well among the chief of God's mercies and the promise of it here shows that God designs to ensure the prosperity promised, by using those means by which it was promoted.