How do we know that Jesus is the cause of salvation?

The belief that Jesus is the cause of salvation is rooted in the testimony of Scripture, particularly in Hebrews 5:9, which states that He became the author of eternal salvation. This means that Jesus is the one who initiates and completes the work of redemption. It is through His obedient suffering and sacrificial death that He accomplishes salvation for His people. Furthermore, the sovereignty of God in salvation reinforces this truth, as God chose His people and orchestrated their redemption before the foundation of the world. Salvation is a work of grace initiated by God, affirming that it is not dependent on human actions or decisions, but solely on Christ’s merits.