How do we know that salvation is dependent on God's choice?

In John 15:16, Jesus explicitly states, 'You have not chosen me, but I have chosen you.' This underscores the biblical truth that God’s election is the foundation of our salvation. If the choice was solely ours, it would imply that our actions determine our salvation, which contradicts the essence of grace. Sovereign grace theology affirms that God’s electing love is the cause of salvation, enabling the chosen to come to Christ willingly and joyfully. Therefore, our assurance lies not in our decisions but in God's sovereign choice.