Why should Christians trust in Christ alone for salvation?

The doctrine of salvation teaches that Christ alone is the source of righteousness and redemption. Jesus stated in John 14:6 that He is the way, the truth, and the life, affirming that no one comes to the Father except through Him. This exclusivity of salvation in Christ underscores that relying on personal merit or any other means will lead to spiritual ruin. Many false doctrines and religions propose alternative paths to God, but the Bible clearly proclaims that it is only through faith in Christ's sacrificial death and resurrection that one can be justified. To trust in anything else, such as works or other mediators, is to fall into the error of counterfeit beliefs. Thus, Christian assurance relies wholly on the work of Christ, as His blood alone cleanses from sin and secures eternal life.