Running after their own thoughts. Their own way of doing it. Thought can be a LIE.
Isaiah 65. God was speaking to the rebellious and then the remnant.
Isaiah 65-2: I have spread out my hands all day unto a rebellious people, which walk in a way that was not good, after their own thoughts; 5 Which say, Stand by thyself, come not near to me; for I am holier than you. These are a smoke in my nose, a fire that burns all the day.
