How does the story of Jacob and Esau illustrate the struggle between the old and new man?

The account of Jacob and Esau exemplifies the ongoing battle between the old man, represented by Esau, and the new man, symbolized by Jacob. In Genesis 25:22-23, Rebekah’s struggle during her pregnancy reflects the internal conflict believers experience between their fallen nature and the new life in Christ. Jacob, desiring the blessing, signifies the spiritual pursuit, while Esau, who despises his birthright, personifies those who are left in their unregenerate state. This narrative emphasizes that true life and fruitfulness come through faith in Christ, affirming that the struggle is not just external but deeply internal, showcasing the believer’s journey of sanctification as they navigate their dual nature. Through God's electing grace, believers are given the strength to overcome this conflict, realizing that reliance on Christ is essential to their victory.