Genesis 27:25-29 Isaac gives Jacob the Blessing

Isaac continued to be suspicious of this 'Esau' who was bringing him food.  However, after asking two times, and having Jacob confirm that he was, indeed, Esau, Isaac says "...'My son, bring me some of you game to eat, so that I may give you my blessing.'  Jacob brought it to him and he ate; and he brought some wine and he drank."  (Genesis 27:25 NIV)

"Then his father Isaac said to him, 'Come here, my son, and kiss me.' " (Genesis 27:26 NIV)  Will Jacob be caught in a lie?  Or is Isaac simply caught up in the significance of this moment, and wishes to express his love for his son?  Jacob goes to his father and kisses him.(v.27)  When Isaac smells Jacob's clothes (or rather, smells Esau's clothes on Jacob) he seems convinced, for he blesses his son and says:

"Ah, the smell of my son is like the smell of a field that the Lord has blessed.

 May God give you of heaven's dew and of earth's richness

--an abundance of grain and new wine.

May nations serve you and peoples bow down to you.

Be lord over your brothers, and may the sons of your mother bow down to you.

 May those who curse you be cursed

and those who bless you be blessed."

Genesis 27:27-29 (NIV)

Jacob is now the official recipient of his father's blessing.  According to the customs of the time, this oral blessing was as binding as any legal contract which we might use today to transfer an inheritance.