How do we know that salvation is accomplished through Christ?

Salvation is accomplished through Christ because He embodies the fulfillment of God's promise of redemption. In Isaiah 53, we learn that He was 'wounded for our transgressions' and 'bruised for our iniquities,' highlighting that all of His actions were directed towards achieving reconciliation with God for His people. The work of Christ was not merely an offer of salvation but the actual attainment of salvation for those He came to redeem. In 1 Corinthians 2:2, Paul emphasizes that his focus was on Christ and His sacrificial work, confirming that believing in Christ connects us with the accomplished work of salvation. Therefore, faith in Christ is essential for appropriating this accomplished salvation.