Justin Martyr and Trifo

The Trinity wasn't formally defined instantly, right? So it wasn't taught in the Old Testament. Nobody defined it in that way. How does Justin Martyr argue against Trifo? Well, I mean, I'm not as well read as he on,. on that side, but. Well, hold on. This is a pretty important for the history of Trinitarian theology. No, absolutely. It's development within the church. Obviously as Roman Catholics, we would see that as completely valid as part of this beautiful process that God has put into place.