God is righteousness forever

Genesis 27:1-46
Isaac blessed Isaac and said,"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."
Jacob deceitfully and took Esau's blessing.
Isaac blessed Esau, "Your dwelling will be away from the earth's richness, away from the dew of heaven above. You will live by the sword and you will serve your brother. But when you grow restless, you will throw his yoke from off your neck."
Rebekah said to his son Jacob: Flee at once to my brother Laban in Haran. Stay with him for a while until your brother's fury subsides. Why should I lose both of you in one day?
Rebekah did not like Esau two Hittite women as his wife.
Why?
No one comes out of this story well. Isaac's plan goes against what god revealed before the boys were born. Esau, in agreeing to the plan, is breaking his oath; the blessing goes with the birthright. Jacob and Rebecca, although in the right, make no reference to God, but cheat and lie to achieve their ends.
Isaac relies completely on his senses, each of which lets him down - even the sense of taste on which he prided himself. When his ears tell him the truth, he will not listen.
The blessing is Jacob's, as God always intended - but at a heavy price. Esau is ready to do murder. The relationship between Isaac and Rebecca is spoilt. And Rebecca will never again see her favorite son, Jacob, the home-lover goes into exile.
How?
The blessing of Jacob from Isaac is God's plan, but Jacob have to pay much heavy price. God is righteousness forever.