Latin used to be the number one language in the medieval catholic Europe for theological discussions, while Greek prevailed in what would become the orthodox part of Europe. Before the division, one could use both (although it was always easier to use Greek/Latin where it was more applicable). Needless to say, Latin was a scholarly language for a very long time, although there is no doubt that Hebrew would have it’s place too - but Latin was definitely more prevalent.
Truly words to live by. If the world ain’t gonna slow down, let me eat the dang trash.