“When morning came it was Leah.” Gen. 29:25
“Jacob who deceived his father who had ‘weak eyes,’ now discovers that his new wife has weak eyes. The deceiver has been deceived, and that by the same trick he had used on his father. Jacob had pretended to be his older brother Esau, and the deception worked because Isaac was blind and drank wine (Gen. 27:25). Now Leah has pretended to be her younger sister Rachel, and the deception worked because Jacob was blind in the dark night and drank wine.”
Sidney Greidanus
Preaching Christ From Genesis
Jacob’s whole life is characterized by deception. From his deception of Esau, to his deception of Isaac, to his deception by Laban and of Laban, to Rachel’s deception of Laban in reference to the household idols, to the deception by his sons regarding the death of Joseph, to the deception of his sons upon the Shechemites in the Dinah incident, all of Jacob’s life is characterized by deception. Even at the end of his life when Jacob blesses the sons of Joseph there is the air of deception as, at the last second, he crosses his arms and blesses Joseph’s sons in reverse of their age.
In the end we see that Jacob’s life is a testimony of God’s grace. From beginning to end it is only sinners that God saves.
http://www.leithart.com/2009/09/01/jacob-the-priest/