Sources: Brueggemann, Walter. Genesis. Interpretation, a Bible Commentary for Teaching and Preaching. Atlanta: John Knox Press, 1982. O’Connor, Kathleen M. Genesis 1-25A. Smyth & Helwys Bible Commentary, 1,1. Macon, Georgia: Smyth & Helwys Publishing Incorporated, 2018. The idea about God's promise moving through the second born can be found in O'Connor pg. 347