The Gospels are Old Testament in that they are written to show us the Divinity of Christ and that he kept the Ot law perfectly. The Nt does not begin until after the resurrection and the birth of the church
So although Jesus prophesied the New Covenant He lived and taught under the Old...
Not in my Bible or any Bible I have ever seen. I'll bet they are listed in the index of your Bible as New Testament forming the foundation of the New and Everlasting Covenant too. Are we supposed to just pretend that the Gospels are just some sort of contextual footnote or reference to support Paulican dogma instead of occupying the apex of biblical hierarchy and containing the actual Words of Christ?
Your Trinitarian beliefs are demonstrably heretical, and your description of the Gospels as OT are equally as false. Do these beliefs come from you or are they taught by your cult?