Well, God never shames me but people sure do. And that's my flesh, of course. That's why it's easier to accept correction from a loving brother or sister in Christ rather than a harsh person.
My father used to say to us kids, "We don't talk like that." or "We don't treat people that way." He didn't make us kids feel ashamed but rather that we were all growing and learning together as a family. He made himself an example with us. When he passed away, our step-dad was the very opposite. It was 100x harder to witness my siblings being crushed by him than it was to endure it myself.
It's so icky to my flesh when a person who is always criticizing others acts like they have it together all the time. They call people names and question if they're a "real" Christian, and try to wield authority by using scriptures to justify their criticism. I have a hard time dying to someone picking on another. :::sigh:::