What does it mean that Christ is our full assurance?

In the historic Reformed tradition, Christ is viewed as our complete assurance due to His finished work on the cross, which fulfills God’s justice and mercy. As the Son of God, He not only provides salvation but also guarantees it through His resurrection and ascension. The fact that He intercedes for us in heaven means we can rest in the assurance of our faith, knowing that He has fully met the requirements of the law on our behalf. Our confidence in salvation is rooted in His righteousness rather than our own efforts.