As I wrote, celibacy was the norm.

The selection of bishops from among only the celibate and the discipline of refraining from relations by married clergy before celebrating the Divine rites are some of the traces of this.

There have been at least two book-length studies of the topic in the last two decades - which are sufficiently arcane that I can’t imagine how one can access a copy outside of perhaps a good seminary library - that dispelled the notion that celibacy was any form of innovation.