Surely, men's thoughts are limited before God. God is completely divine and is thought are not like ours and His ways are not like our ways. There is no one single person who even own the thoughts that he thinks no! You might be feeling you are thinking, But something is whispering to you. Why? is because it's it is not in a man to direct himself.
So, we are limited as humans, but in Christ, we are not. Thinking so highly of yourself is a sin, that's why the scripture says that it is not good for a man to think so highly of himself. That is because it is only God who's thoughts are completely unlimited.
To further understand this better, please listen to the preaching with the video above thanks!