The rivalry between these sisters explains much of the later conflict among their sons, and then among the tribes. This is similar to how Jacob and Laban's rivalry predicted future conflicts between Israel and the Arameans of Damascus (2 Samuel 8:5–6; 10:8–19; 1 Kings 20:1–34; 2 Kings 5:1–8:29; 13:1–25; Isaiah 7:1–9).
God fights for the cause of the poor and oppressed. He honored Leah, the despised first wife, by making her the first mother. Judah's royal tribe and Levi's priestly line came from her. This was despite Jacob's favoritism for Rachel and her children.
Despite the tension and jealousy resulting from Laban’s deceit and Jacob’s favoritism, God still grew Jacob’s family and brought about the births of the tribal ancestors.