Why do we need to rely on Christ alone for salvation?

Faith in Christ alone is paramount because He is the only one who can completely and adequately atone for human sin. As expressed in Acts 4:12, there is no other name under heaven given among men by which we must be saved. This highlights that Christ’s sacrificial death and resurrection are central to God’s redemptive plan. Believers must trust not in their goodness but in Christ’s righteousness as the basis of their acceptance before God, affirming the crucial scriptural principle that salvation is through Christ alone, apart from any human merit.