What does the Bible say about the Holy Spirit's work in salvation?

The work of the Holy Spirit is pivotal in the salvation of God's elect, as He is the one who not only applies the redemptive work of Christ but also transforms the heart of the believer. Ephesians 2:1-5 highlights that we were dead in our trespasses, and it is the Holy Spirit who quickens us, making us alive in Christ. Without the Holy Spirit's renewing power, the elect remain in spiritual death, unable to respond to God. Thus, He plays a vital role in effectually applying Christ's atonement, giving faith, and sealing believers with the promise of their inheritance (Ephesians 1:13-14).