How does God complete the work of salvation in believers?

The completion of salvation in believers is assured by God's faithfulness to finish what He has begun. Philippians 1:6 assures us that He who began a good work in us will complete it until the day of Jesus Christ. This ongoing work of sanctification is accomplished through the Holy Spirit, who guides, instructs, and empowers believers to grow in grace and knowledge. As we abide in Christ and His word abides in us, we are continually transformed, reflecting His image. This process is evidence of God's unyielding commitment to His covenant promises, ensuring that every believer will ultimately be presented blameless before Him.