What does Romans 9 teach about God's choice in election?

In Romans 9, Paul discusses God's sovereign choice through the example of Jacob and Esau, emphasizing that God's election occurred before they had done any good or evil. This demonstrates that election is not contingent upon human actions, but solely on God's will. The verse 'Jacob have I loved, but Esau have I hated' (Romans 9:13) illustrates the unconditional nature of God's choice, reinforcing the understanding that His purpose in election will stand despite human opposition or disbelief.