How do we know the Holy Spirit works through faith?

In Galatians 3:2, Paul poses a crucial question to the Galatians regarding how they received the Holy Spirit: 'Received you the Spirit by the works of the law, or by the hearing of faith?' This illustration makes it clear that the Holy Spirit operates through the preaching of the gospel, which is a message of faith, rather than through compliance with the law. The scripture testifies that it is the hearing of faith that leads to spiritual awakening and regeneration, affirming that our salvation and ongoing sanctification are rooted in faith, not in human effort.