How do we know that final glory for believers is assured?

The assurance of final glory for believers is rooted in the comprehensive work of Christ and His sovereign grace. Believers are justified by faith and rest in the promise of eternal life, as revealed in Scripture. 2 Timothy 4:8 speaks of a crown of righteousness laid up for those who love His appearing, affirming that it is Christ who gives this reward. The imputation of Christ's righteousness to believers is foundational—God views them as justified through faith in His Son. This ensures that despite trials on earth, believers are preserved by God's grace until they enter into eternal glory.