How do we know the Holy Spirit is a person and not just a force?

The distinction of the Holy Spirit as a person comes from His actions and attributes that reflect personality, such as teaching, comforting, and grieving. Paul encourages believers not to grieve the Holy Spirit (Ephesians 4:30), indicating that He can experience emotions, which is a characteristic of a person. Furthermore, the Holy Spirit is recognized as a member of the Trinity, co-equal with the Father and Son. His personal engagement with believers—through calling, regenerating, and sealing them—emphasizes His active role in the life of the church and the individual believer.