Rashi on Numbers 24:16/רש"י על במדבר כ״ד:ט״ז

1וידע דעת עליון WHO KNOWETH THE MIND OF THE MOST HIGH — i.e., who knoweth to determine the precise moment when He is angry. (The meaning of the text is: “who knoweth His state of mind”, not, ”who knoweth his thoughts”) (Sanhedrin 105b).