How do we know that Christ is our all in salvation?

The assertion that Christ is our all in salvation is rooted in the belief that He is the unique mediator who reconciles us to God. His life, death, and resurrection are the foundation of our salvation, as He fulfills all requirements of the law on our behalf. He is the one who bears our sins, making Him our righteousness (1 Corinthians 1:30). Furthermore, Scripture teaches that we were chosen in Him before the foundation of the world (Ephesians 1:4), underscoring His pivotal role in our salvation.