How do we know that election is true in the Bible?

Scripture provides numerous instances affirming the doctrine of election. For example, God chose Isaac over Ishmael, emphasizing His sovereign prerogative to decide whom to bless (Genesis 21). Similarly, in Romans 9:11, God declares His choice of Jacob over Esau, illustrating that this decision was made before either child had done anything good or bad. Such examples highlight that election is based on God's will and purpose, not human actions. These narratives underscore the biblical reality that God exercises His authority to accomplish His divine plan, upholding the doctrine of sovereign election.