That would infer that either the words attributed to Christ (mentioning the Father and the Holy Spirit) are not what He stated or the early Church interpreted his words incorrectly? There is no rigorously defined doctrine of the trinity in the Christian scriptures. The Holy Spirit, and the righteous man being called a 'son of God', are present in Judaism. They are not, however, seen as separate persons within a triune godhead. The doctrine of the trinity was a concept which evolved over time based, in part, upon theological reflection on the sort of verses to which you allude.
Deviating from the discussion for the moment, I must admit I am impressed by your knowledge of Christian Theology and History; better than the vast majority who profess the faith.
Did you Major in Religious Studies in College? Are you a Rabbi?
No offense if you don't wish to answer.