How Do We Know They Proclamed This High Christianity?

I've got a couple of objections to this, this line of reasoning. How do we know they were proclaiming this high christology from the very beginning? I o to give five reasons to know what happened. By 36 a d, it was already unpacked. But we see five evidences that tell us here's how had happened. We don't have to wait for t first thessalonians in 50 a d where it's high chrystology and it's never explained. So they already believed it in thessalonica, first, thessalonian. When all em back to the cross an, i said, here's was coming out of the cannon, right