With regard to Kabsal, this really jumps out at me: “Everything has its opposite, Shallan. The Almighty is a force of good. To balance his goodness, the cosmere needed the Voidbringers as his opposite.” To put it in different terms: For every push, there is a pull.
“When you push against something—whether with Allomancy or with your hands—it goes directly in the opposite direction. Force, reactions, consequences.” As Kelsier says in TFE.
This isn’t just a Vorn belief - it’s an Allomantic truth! Those are the teachings of an Allomancer, - the same allomancer who taught it to us way back when.