The Holy Spirit is a light to us in three ways: by exposing our guilt, by illuminating the word of God, and by showing us Christ. Or to put it another way, as Divine Light, the Holy Spirit works to reveal sin, reveal the truth, and reveal glory. When we close our eyes to this light or disparage what we are meant to see by this brightness, we are guilty of resisting the Spirit (Acts 7:51), or quenching (1 Thess. 5:19) or grieving the Spirit (Eph. 4:30).