The Universal Trustee, The Disposer of Affairs, The Trustworthy.
Allah سُبْحَٰنَهُۥ وَتَعَٰلَىٰ is Al-Wakeel (in Arabic: ٱلْوَكِيلُ), the one and only who can be trusted with all our affairs. He is the supreme trustee, guardian, and administrator. A believer understands the rewards of his efforts come from Allah سُبْحَٰنَهُۥ وَتَعَٰلَىٰ, and therefore He entrusts his faith fully in Him.