What does the Bible say about Jesus's work of salvation?

The Bible declares that Jesus has done everything well, meaning His work of salvation is complete and effective. In Mark 7:31-37, the crowd marvels at Jesus, saying, 'He has done everything well.' This underscores the belief that His redemptive work does not require any additional effort from us to be effective. If Jesus's work was insufficient, then He wouldn't truly have done everything well, which contradicts the teaching of scripture. Sovereign grace theology emphasizes that Christ came to save a specific people, and He fulfilled that mission perfectly by losing none of those whom the Father has given Him.