the only thing jesus and the new testament changed, is people didnt have to sacrifice animals/crops to get to heaven anymore. where most of the jews of the time disagreed and went their separate ways.
thats it. paul is just some guy who dosnt speak for jesus or god anyways.
most christians love the 10 commandments. thats some outdated jew stuff as well. but they chose to keep that over the violent demands that are still required.
you cant pick and choose based on what some modern preacher says. he didnt write the bible either, nor can any of you decide how to follow it. its either all relevant, or none of it. all literal, or none of it.