How do we know Christ is our justification?

In Romans 8:33-34, Scripture states that it is God who justifies, revealing that our justification rests solely on Christ's perfect work. His sacrifice on the cross provides a complete atonement for sin, affirming that we, as believers, have no further work to add to what He has accomplished. Christ's resurrection is the ultimate assurance of our justification; it signifies that His atoning work is accepted by God. The faith that proclaims Christ as all is the same faith that recognizes Him as the sole source of justification before God.