What does it mean that salvation is not open-ended?

The concept that salvation is not open-ended refers to the finished nature of Christ's redemptive work. God designed salvation as a completed act at the cross, securing it for His elect. This is evident in Hebrews 10:14, which states, 'For by one offering He has perfected forever those who are being sanctified.' We do not have the ability to contribute to our salvation; it is fully reliant on God's sovereign grace. This truth frees believers from the anxiety of performing to earn favor with God, as their standing is wholly based on the merit of Christ, not on personal achievements or failures. Thus, believers can live in assurance, knowing that their salvation is secure in Him.