Nothing.
My guess is that teppe subscribes to some form of the Arian heresy.
Denial of the true divinity of Jesus Christ taking various specific forms, but all agreed that Jesus Christ was created by the Father, that he had a beginning in time, and that the title "Son of God" was a courtesy one.
All forms of Arianism denied that Jesus Christ is "consubstantial with the Father" but proposed either "similar in substance", or "similar", or "dissimilar" as the correct alternative.
The dispute between Orthodoxy and the Latin Church is primarily whether the Spirit proceeds from the Father and the Son, or only from the Father (in the Nicene creed, the Latin word is “filioque”)