How do we know the doctrine of the Holy Spirit is true?

The truth of the doctrine of the Holy Spirit is rooted in the teachings of Scripture, revealing His indispensable role in the lives of believers. The Holy Spirit is instrumental in the new birth, as described in John 3:5-6, making the regenerate life possible. He is also the agent who confirms believers’ faith and leads them in obedience to the will of God (Romans 8:14). This regenerative work is essential for true conversion, distinguishing it from mere moral reformation. By trusting in Christ and being filled with the Holy Spirit, believers are empowered to embody the Gospel, affirming the validity of this doctrine throughout church history.