How do we know that Jesus is enough for salvation?

The sufficiency of Christ for salvation is a foundational doctrine in sovereign grace theology, affirming that Jesus alone is the mediator between God and man (1 Timothy 2:5). His life, death, and resurrection fulfilled all requirements for redemption, making Him the only source of true salvation. This principle is essential because it underscores the belief that no human effort or additional work is necessary for salvation. In John 14:6, Jesus declares, 'I am the way, the truth, and the life; no one comes to the Father except through me', emphasizing that all who come to Him will be fully saved. Thus, for those who trust in Christ, His work is unquestionably enough to guarantee eternal life.