Charles Ellicott Commentary Isaiah 55:10

"For as the rain cometh down and the snow from heaven, and returneth not thither, but watereth the earth, and maketh it bring forth and bud, and giveth seed to the sower and bread to the eater;" — Isaiah 55:10 (ASV)

For as the rain comes down ... —The verse includes nearly every element of the parables of agriculture. The “rain” and the “dew” are the gracious influences that prepare the heart; the “seed” is the Divine word, the “sower” is the Servant of the Lord, i.e., the Son of Man (Matthew 13:37); the “bread” the fruits of holiness that in their turn sustain the life of others.