How do we know salvation is accomplished by Christ alone?

The assurance that salvation is accomplished solely by Christ stems from multiple facets of biblical teaching. First and foremost, the resurrection of Jesus is a cornerstone of our faith, substantiating His claim as the Savior. As Paul writes, if Christ did not rise, our faith would be in vain. The Scriptures reinforce this assurance, proclaiming that Jesus is the way, the truth, and the life, confirming that no one comes to the Father except through Him (John 14:6). Additionally, the concept of grace alone, as highlighted in Ephesians 2:8-9, underscores that our salvation is not by works but by faith in Christ's completed work, culminating in His sacrifice on the cross.