The Governor, The Ruler.
Allah سُبْحَٰنَهُۥ وَتَعَٰلَىٰ is Al-Waali (in Arabic: ٱلْوَالِي), The One who is the sole planner and governor of all things. He is fully supportive, helpful, and a master of all. He manages and disposes of things at His will based on His judgment.
