Why is Christ everything for our salvation according to Reformed theology?

In Reformed theology, Christ's role as the sole mediator is paramount. The sermon emphasizes that Jesus does not leave any part of salvation to us; He is the way, the truth, and the life (John 14:6). The belief is that if Christ had not completed all the work of redemption, then our efforts would fall short. The preacher insists on the totality of Christ's work so that believers may rest in Him alone for righteousness. This perspective reflects the understanding that true worship and assurance come from recognizing Christ's merit entirely apart from ourselves. As such, He receives all the glory for our salvation.