In what sense do you mean that He is Almighty?
That does not mean that He has a power which He does not exercise, but that He disposes all things by His Providence, governs the world by His will, ruling all as it seems good to Him.
That does not mean that He has a power which He does not exercise, but that He disposes all things by His Providence, governs the world by His will, ruling all as it seems good to Him.