“Read the early church fathers.”
If you took your own advice, you probably wouldn’t be a Protestant for very long.
I’m just saying. . .
I’m not a Protestant and I’m not a Romanist. I am a follower of Jesus The Anointed One, and of His Word. No one has anything better to give their allegiance to.
In fact, I became a Calvinist by reading Augustine. I didn't start reading Calvin until later.