Gen. 28:1 "And Isaac called Jacob, and blessed him, and charged him, and said unto him, Thou shalt not take a wife of the daughters of Canaan. 2 Arise, go to Padanaram, to the house of Bethuel thy mother's father; and take thee a wife from thence of the daughters of Laban thy mother's brother. 3 And God Almighty bless thee, and make thee fruitful, and multiply thee, that thou mayest be a multitude of people; 4 And give thee the blessing of Abraham, to thee, and to thy seed with thee; that thou mayest inherit the land wherein thou art a stranger, which God gave unto Abraham. 5 And Isaac sent away Jacob: and he went to Padanaram unto Laban, son of Bethuel the Syrian, the brother of Rebekah, Jacob's and Esau's mother."

After that Isaac had caused great harm to his family by seeking to bless Esau without either seeking guidance of the LORD or considering what the LORD had told Rebekah concerning the two sons, Isaac learned his lesson and called Jacob and blessed him with the blessing that he should have blessed him with without the deceitful antics of Rebekah and Jacob. 

Previously, Abraham had instructed his most trusted servant to go to Pandanaram and seek a wife for Isaac of the house of his kindred.  The LORD led the servant to Rebekah, the daughter of Bethuel and the sister of Laban.  Abraham was very specific that the servant was not to bring a wife of the daughters of the Canaanites.  Of course, Rebekah became the wife of Isaac.  Now following this example, Isaac instructs Jacob to go to the same place and seek a wife among the daughters of Laban.  One of the reasons that the Canaanites would not be a suitable wife for either Isaac or Jacob was that God was going to destroy the nations that occupied the land of Canaan.  If either Isaac or Jacob had married a Canaanite, then it would have been hard for them and their descendents to destroy the nations that occupied the land of Canaan.  Also, the Canaanites with their wicked ways and idolatrous practices would have turned the hearts of Isaac, Jacob, and their descendents from following the Lord. 

Moreover, we have the best example of finding a spouse shown to us by example in the scriptures.  Abraham had sought a wife for Isaac and besought the Lord in helping him to do so.  Isaac instructed Isaac of where to find a spouse and besought the Lord of Jacob's behalf.  This method is still the best method today for finding the right spouse for God's children.

"And God Almighty bless thee, and make thee fruitful, and multiply thee, that thou mayest be a multitude of people; 4 And give thee the blessing of Abraham, to thee, and to thy seed with thee; that thou mayest inherit the land wherein thou art a stranger, which God gave unto Abraham."  God's blessing and promise had previously been passed to Isaac.  Moreover, Isaac had already learned from the Lord that Jacob was chosen of God to be the recipient of God's covenant promise and not Esau.  Thus, Isaac officially passed the torch to Jacob.  Now the LORD himself would appear to Jacob and confirm that he would inherit the promises that were previously made to Abraham and Isaac.  We also note in this passage, that Abraham and Isaac inherited the land by promise as they did not have possession of the land.  Possession of the land would not come for several generations.  Yet, the land was theirs by covenant promise.  Now the land would be Jacob's and his offspring by covenant promise. 

"And Isaac sent away Jacob: and he went to Padanaram unto Laban, son of Bethuel the Syrian, the brother of Rebekah, Jacob's and Esau's mother."  Now, both Isaac and Jacob are acting in obedience to the covenant promise that God had made to Abraham and Isaac.  Isaac was being obedient in sending Jacob away to find a bride among the daughters of Laban and Jacob was acting in obedience in going to Padanaram to find a bride among the daughters of Laban. 

As a side note, Jacob was about 70 years of age when he went to Padanaram.   

Gen. 28:6-9  Esau's Wives 

Gen. 28:6 "When Esau saw that Isaac had blessed Jacob, and sent him away to Padanaram, to take him a wife from thence; and that as he blessed him he gave him a charge, saying, Thou shalt not take a wife of the daughters of Canaan; 7 And that Jacob obeyed his father and his mother, and was gone to Padanaram; 8 And Esau seeing that the daughters of Canaan pleased not Isaac his father; 9 Then went Esau unto Ishmael, and took unto the wives which he had Mahalath the daughter of Ishmael Abraham's son, the sister of Nebajoth, to be his wife."

Previously Esau had taken wives of the daughters of Canaan.  These were a distress to both Isaac and Rebekah.  Esau, an alien from the covenants of promise, always acted in a selfish manner.  Whatever he did, he sought to do for his own selfish reasons.  This is the nature of fallen man.  It is the nature of an individual who has not been born of the Spirit of God.  Esau now sought the favor of his father for gain.  He did not need another wife, yet he saw that his previous wives did not please his father, so he sought to please his father by taking a wife of the daughters of Ishmael.  Isaac had not told or besought Esau to do this, yet selfishly Esau thought that by taking Mahalath to be his wife that Isaac would be pleased.  Of course, Esau was not seeking to please God by his actions.