How do we know that Jesus' death was effective for our salvation?

The efficacy of Jesus' death for salvation is firmly grounded in the biblical narrative and God's sovereign plan. Throughout Scripture, prophecies foretell the coming of the Messiah who would bear the sins of many, culminating in the sacrificial death of Jesus Christ on the cross. Romans 5:8 affirms that God demonstrates His love for us in Christ's death, while Hebrews 10:14 proclaims that He 'for ever perfected' those who are sanctified. Additionally, the resurrection serves as divine confirmation that Christ's sacrifice was accepted by the Father, thus assuring believers of their justified status before God.