Najeeb Awad aims at defending the personhood of the Holy Spirit by proposing answers to these questions: What is the Holy Spirit in relation to God? Is He a spirit-like presence of a monistic deity; is He merely a charismatic, supernatural power bestowed upon Jesus; or is He rather the third divine person in the Trinity, who is co-influential in and co-constitutive of the Godhead? The author re-examines the validity of both Western and Eastern trinitarian theologies and corrects their reduction of the Spirit either to a mere 'relationship' or 'mode of presence', or to a semi-subordinate...