Charles Ellicott Commentary Genesis 27:28

"And God five thee of the dew of heaven, And of the fatness of the earth, And plenty of grain and new wine." — Genesis 27:28 (ASV)

Therefore God give thee. —Hebrew, And the Elohim give thee. Here, as often is the case, the name Elohim follows immediately upon that of Jehovah. As the blessings of dew and fertile land are the gifts of the God of nature, the use of the title Elohim is in accordance with the general rule.

The fatness of the earth. —Hebrew, the fatnesses: that is, the fat places. In the countries where Esau and Jacob were to have their homes, the land varies from districts of extraordinary fertility to regions of barren rock and sterile sand. It was these rich fields which Isaac’s blessing conveyed to Jacob.

Wine. —Not the word used in Genesis 27:25, but tirosh, the unfermented juice of the grape. It thus goes properly with corn, both being the natural produce of the field.