Matthew Poole and continuators on Isaiah 30:23

23. Then shall he give the rain of thy seed that thou shalt sow the ground withal, and bread of the increase of the earth , and it shall be fat and plenteous : in that day shall thy cattel feed in large pastures.

Or rather, as others render it, to or for thy seed, when thou hast newly sown thy Seed, which was called the former rain; or such as thy Seed requires, which may include both the former, and the latter Rain. Their Sins, the cause of all God's judgments which had befallen them, being removed by their sincere Repentance, and God's gracious Pardon, God showreth down all his Blessings upon them.

Which shall be the Fruit of thy own Land and Labour: which is a great Mercy and Comfort.

Thy Bread shall be excellent for quality, which is called fat, Deut. 32. 14. and abundant for quantity.