27:1 Here is Isaac's design to declare Esau his heir. The promise of the Messiah and the land of Canaan was a great trust first committed to Abraham, inclusive and typical of spiritual and eternal blessings; this by divine direction he transmitted to Isaac. Isaac being now old, and either not knowing, or not duly considering the divine oracle concerning his two sons, that the elder should serve the younger, resolves to entail all the honour and power that was wrapt up in the promise upon Esau, his eldest son. He called Esau - Tho' Esau, had greatly grieved his parents by his marriage, yet they had not expelled him, but it seems were pretty well reconciled to him.
27:1-5 The promises of the Messiah, and of the land of Canaan, had come down to Isaac. Isaac being now about 135 years of age, and his sons about 75, and not duly considering the Divine word concerning his two sons, that the elder should serve the younger, resolved to put all the honour and power that were in the promise, upon Esau his eldest son. We are very apt to take measures rather from our own reason than from Divine revelation, and thereby often miss our way.
