How do we know that God's choice of the elect is fair?

The fairness of God's sovereign choice can be understood through the lens of justice and mercy. Many argue that it is unjust for God to choose some and not others, but this perspective fails to recognize that God is under no obligation to save anyone. As depicted in various scriptures, including Romans 9, God has the right to have mercy on whom He wishes and to harden whom He wills. His choices stem from His will and purpose, which are ultimately beyond human comprehension. Recognizing our sinful state allows us to see that any act of mercy is a testament to His grace rather than an obligation.