How do we know Christ is enough for salvation?

The sufficiency of Christ for salvation is affirmed in various scriptures such as Romans 10:4, where Paul states that Christ is the end of the law for righteousness. This means that His perfect life and righteous deeds are sufficient, and we do not need to add our works to it. John 6:44 highlights the impossibility of coming to Christ without divine intervention, underscoring that our ability to be saved completely relies on Jesus's work and not our own. Therefore, His total righteousness is sufficient to justify us before God.