27:30-40 When Esau understood that Jacob had got the blessing, he cried with a great and exceeding bitter cry. The day is coming, when those that now make light of the blessings of the covenant, and sell their title to spiritual blessings for that which is of no value, will, in vain, ask urgently for them. Isaac, when made sensible of the deceit practised on him, trembled exceedingly. Those who follow the choice of their own affections, rather than the Divine will, get themselves into perplexity. But he soon recovers, and confirms the blessing he had given to Jacob, saying, I have blessed him, and he shall be blessed. Those who part with their wisdom and grace, their faith and a good conscience, for the honours, wealth, or pleasures of this world, however they feign a zeal for the blessing, have judged themselves unworthy of it, and their doom shall be accordingly. A common blessing was bestowed upon Esau. This he desired. Faint desires of happiness, without right choice of the end, and right use of the means, deceive many unto their own ruin. Multitudes go to hell with their mouths full of good wishes. The great difference is, that there is nothing in Esau's blessing which points at Christ; and without that, the fatness of the earth, and the plunder of the field, will stand in little stead. Thus Isaac, by faith, blessed both his sons, according as their lot should be.
30-35. Esau came in from his hunting—Scarcely had the former scene been concluded, when the fraud was discovered. The emotions of Isaac, as well as Esau, may easily be imagined—the astonishment, alarm, and sorrow of the one; the disappointment and indignation of the other. But a moment's reflection convinced the aged patriarch that the transfer of the blessing was "of the Lord," and now irrevocable. The importunities of Esau, however, overpowered him; and as the prophetic afflatus was upon the patriarch, he added what was probably as pleasing to a man of Esau's character as the other would have been.