What does the Bible say about eternal salvation?

Eternal salvation refers to the everlasting life granted to believers through faith in Jesus Christ. The Scriptures affirm this in passages such as Hebrews 5:9, which states that Christ is the source of eternal salvation for those who obey Him. Unlike temporal achievements or moral efforts, which can be shaken and are ultimately futile, eternal salvation is based on the eternal work of Christ. This means that believers are justified and accepted by God solely through Christ's righteousness, as noted in Philippians 3:9 where Paul expresses the desire to be found in Christ, not having a righteousness of his own. Therefore, the assurance of eternal salvation lies in Christ alone and His everlasting covenant and redemptive work.