The Limitation of My Mind

I don't feel like there are any real fundamental disagreements on the presuppositions needed to build out like physics and chemistry. But in ethics, how do you resolve people that are coming from fundamentally completely different places? I believe I'm only granted things to special revelation. God tells me what's right or wrong. And then someone else might say every human a perfectly reasonable can come to the same moral truth. We all generally come from the same place. It's just because you're unlikely to need to kill somebody or imprison them for this reason.