How do we know the Holy Spirit is God?

The divinity of the Holy Spirit is clearly established in Scripture, particularly in passages where He is referenced in conjunction with the Father and the Son, such as in the Great Commission of Matthew 28:19. The phrase 'baptizing them in the name of the Father, the Son, and the Holy Spirit' signifies the equal standing and divine nature of all three Persons of the Trinity. Furthermore, Acts 5:3-4 illustrates the Holy Spirit's divine attributes; lying to Him is equated with lying to God, emphasizing His status as God.

In addition to these scriptural affirmations, the personal attributes and actions of the Holy Spirit further confirm His divinity. He possesses a will, understands the deep things of God, and has the authority to inspire and act through believers. His role in the process of salvation, sanctification, and intercession all demonstrate His Godhood and intimate involvement in the lives of God’s people, aligning perfectly with the teachings of sovereign grace theology.