Whenever I talk about the creeds, certain Evangelicals flinch, ’cause they think creeds are a Catholic thing. No; they’re an ancient Christian thing, and therefore they’re a present-day Christian thing. Creeds existed centuries before the Roman Catholic Church did.
Creeds are faith statements. The ancient Christians were trying to sort out what was orthodox and what was heresy; what was consistent with Jesus and scripture, and what wasn’t. And once their councils sorted it out, they published their faith statement—which, in Latin, began with the word credo, “I believe.” If you believe this too, you’re orthodox; nobody’s gonna doubt whether your Christianity is authentic based on your theological beliefs. (They might still doubt it based on your fruit, which counts for more… but fleshly Christians really hope you never notice. Sad to say, may don’t.)
And churches still have faith statements. And still require their members to sign off on ’em. Not always declare “I believe…” etc.; but if you don’t believe what they do, it’s gonna create problems. So they’re still practicing a form of creedal Christianity; it just doesn’t take the very same form as the ancient creeds. But man alive, are they similar.
For one thing, most faith statements include just about everything that’s in the creeds. Usually that’s because they’re just duplicating their denomination’s faith statement… and the denomination took its faith statement from the creeds. For those churches who independently get to come up with their own faith statements, you realize the leaders of that church simply duplicated the statements of the churches they grew up in, or admire most. And if you work your way back to what inspired those churches, and the churches they imitated them, and the churches those churches imitated… yep, we’re back to the creeds again.
Face it: The creeds are pretty much at the back of all orthodox Christianity. And if they’re not—if, like many an Evangelical, you claim you got your beliefs directly out of the bible, not the creeds—okay, maybe you think you did. I certainly thought I did. Believing Jesus is both fully God and fully human is based on what the bible teaches, isn’t it?—and yes, it absolutely is. But recognizing it’s okay to believe both things simultaneously—even that we should believe both things, and try not to prioritize one over the other—ultimately stems from creedal Christianity.
More precisely: Stems from the ancient Christians who realized, “Oh, we gotta emphasize how Jesus is both, ’cause too many heretics are claiming Jesus is more one than the other, or is only one but not the other.” Who realized overemphasizing Jesus’s divinity at the cost of his humanity, or humanity at the cost of his divinity, gets him wrong. Who realized this wrongness undermines our relationship with him in a big way, so we’d better get this part right, at least.
And generations of Christians thereafter have taken up the ancient Christians’ cause. Including Christians who have no idea this cause didn’t originate with the Christians who wrote the bible, but the Christians a few centuries later who began to realize how important it is, gathered with other Christians across the civilized and uncivilized world to hash it out, and came up with the creeds.