When the kids were younger and would violate one of our household rules such as no hitting I would say to them, “Check your belly” which means how does your belly feel right now. Sin never feels good or brings peace. I was helping them see that it wasn’t just about their performance or obeying the law, but that it does not profit them to sin.
As the years have rolled on we have zeroed in on this principle of ‘how does your belly feel’ as this is where we gauge our peace. If you don’t have peace, no matter what the circumstance, chances are you probably shouldn’t be doing it. Peace is His presence and we want to be in peace at all times.