Adam Clarke's Bible Commentary Verse 1. And Isaac called Jacob] See note on ""chap. xxvii. 46"".
And blessed him] Now voluntarily and cheerfully confirmed to him the blessing, which he had before obtained through subtlety. It was necessary that he should have this confirmation previously to his departure; else, considering the way in which he had obtained both the birthright and the blessing, he might be doubtful, according to his own words, whether he might not have got a curse instead of a blessing. As the blessing now pronounced on Jacob was obtained without any deception on his part, it is likely that it produced a salutary effect upon his mind, might have led him to confession of his sin, and prepared his heart for those discoveries of God's goodness with which he was favoured at Luz.
Matthew Henry Commentary
Verses 1-5 - Jacob had blessings promised both as to this world and that which is to come; yet goes out to a hard service. This corrected him for the frau on his father. The blessing shall be conferred on him, yet he shal smart for the indirect course taken to obtain it. Jacob is dismissed by his father with a solemn charge. He must not take a wife of the daughters of Canaan: those who profess religion, should not marry with those that care not for religion. Also with a solemn blessing. Isaa had before blessed him unwittingly; now he does it designedly. Thi blessing is more full than the former; it is a gospel blessing. Thi promise looks as high as heaven, of which Canaan was a type. That wa the better country which Jacob and the other patriarchs had in view.
Original Hebrew ויקרא7121 יצחק3327 אל413 יעקב3290 ויברך1288 אתו853 ויצוהו6680 ויאמר559 לו לא3808 תקח3947 אשׁה802 מבנות1323 כנען׃3667