What does the Bible say about beginning in the Spirit?

The concept of beginning in the Spirit is foundational in understanding salvation according to the Bible. In Galatians 3:3, Paul asks the believers if, having begun by the Spirit, they are now being perfected by the flesh. This underscores the necessity of the Holy Spirit's role in regeneration and new life. Regeneration is a work initiated by God, which brings spiritual dead people to life in Christ, something that cannot be accomplished by human effort or adherence to the law. This principle reflects the truth that salvation is wholly of the Lord and His grace, not of our works.