How do we know God chooses whom to save?

The concept of God's sovereign choice in salvation is critical to understanding His grace. In Ephesians 1:4-5, it states that He chose us in Him before the foundation of the world, illustrating that our salvation is rooted in His divine and unconditional election. This choice exemplifies God's grace and mercy, showing that He has the authority to save whom He wills, just as He has the right to harden hearts as seen in Exodus 33:19. Understanding this aspect of God's nature encourages believers to rest in His perfect plan and purpose for their salvation.