Why is the doctrine of double predestination important?

The doctrine of double predestination, also known as equal ultimacy, insists that just as God has chosen some to salvation, He has also determined the reprobation of others. This teaching underscores God's complete authority over all of creation, as affirmed in Romans 9:18-21. It is critical because it affirms that God's will is not only active in salvation but equally in judgment, which reflects His sovereignty in all matters. Some may find this troubling, viewing it as harsh or unjust; however, a proper understanding acknowledges God’s righteousness and the inherent justice of His choices, as His purposes ultimately aim to glorify Himself.