Genesis 27:1

“And it came to pass, that when Isaac was old, etc.] He is generally thought to be about one hundred and thirty seven years of age at this time, which was just the age of his brother Ishmael when he died, (<012516>Genesis 25:16); and might put him in mind of his own death as near at hand; though if he was no older, he lived after this forty three years, for he lived to be one hundred and eighty years old, (<013528>Genesis 35:28): and his eyes were dim, so that he could not see; which circumstance is mentioned, not only as a sign of old age, and as common to it, but for the sake of the following history, and as accounting for it, that he should not know Jacob when he blessed him; and this was…”

“INFIRMITY OF ISAAC. (Gen. 27:1-27) when Isaac was old, and his eyes were dim--He was in his hundred thirty-seventh year; and apprehending death to be near, Isaac prepared to make his last will--an act of the gravest importance, especially as it included the conveyance through a prophetic spirit of the patriarchal blessing.”

“27:1-40 Jacob got his father Isaac’s blessing through deception. In this story, an entire family tries to carry out their responsibilities by physical means rather than by faith. Faith would have provided Rebekah and Jacob a more honorable solution to the crisis. 27:1-4 The first scene sets up the chapter’s crisis. Isaac knew of God’s oracle (25:22-23), yet he thwarted or ignored it by trying to bless Esau. • Isaac was old and turning blind: He was losing his senses, both physically and spiritually.”