From H Roy Elseth’s Did God Know:
It is also quite common in Christian circles to hear the statements: “If we could prove God, He would not be God,” “If we could fully understand God, then we would be equal to Him,” or “If we could fully understand Him, He could not be God.” This is incredible subjective reasoning. It is just as logical as saying, if you could fully understand the workings of a television set or prove how it functions, then you would become a television set. Most of us would agree that God fully understands the principles of television. Does that mean then that we can absurdly reason that God is a television set?