It can be well argued that once the personality of the Spirit is established, the argument about His deity is over. The 'Spirit of God' who is said to be omnipresent (Ps 139:7), omniscient (1 Corinthians 2:10-11), and active in the very creation itself (Genesis 1:2; Psalm 104:30) hardly fits the description of some kind of lesser being. But the fact that this Spirit shares the one divine name with the Father and the Son (Matthew 28:19) makes His deity indisputable.