How do three almighty, eternal, distinct divine personalities make one almighty and eternal being? Well, they don’t! Nevertheless, the Trinity doctrine, the claim that the Godhead is composed of the Father, the Son and the Holy Spirit became the central and unique doctrine of the vast majority of those who call themselves Christians. Yet, in essence, it is nothing more than a speculative theory. In truth, it cannot be regarded as a statement about the ontological divine nature itself. This book shows why even the New Testament authors would have rejected this post-New Testament addition to Christian teachings.