How do we know Christ's redemption is for us?

The assurance that Christ’s redemption is for us comes from the nature of His sacrificial death and our response of faith. The scriptures emphasize that Christ laid down His life for His elect, asserting in Ephesians 1:13-14 that believers are sealed with the Holy Spirit as a guarantee of their inheritance. The promise found in Romans 8:30 assures us that those whom God predestined, He also called, justified, and glorified. Therefore, our conviction in Christ as our kinsman redeemer, and the indwelling Spirit that seals us, serve as profound evidence of our place in His redemptive plan.