Who is the Holy Spirit? The Holy Spirit is God, and these verses prove He's God. He's omnipresent. Psalm 139-7 says, I can never escape from your Spirit. He's omnipotent. This verse equates the Holy Spirit's power with the power of the most high. The Holy Spirit will come upon you, and the power of the most high will overshadow you. Finally, the Holy Spirit is omniscient. He searches and knows the mind of God. 1 Corinthians 2-11 says, No one can know God's thoughts except God's own Spirit. So the Holy Spirit is omnipresent, omnipotent, and omniscient. Therefore, the Holy Spirit is God.