The one who has knowledge of everything, has power over everything, His mercy encompasses everything and He is dominant over everything.
“If good befalls you it grieves them, but if some evil overtakes you they rejoice at it. But if you remain patient and become of the God-fearing, not the least harm will their cunning do to you. Allah is Muhit of what they do.”
[Ali 'Imran (3): 120]
“And be not like those who come out of their homes boastfully to be seen of men, and hinder from the Path of Allah. Allah is Muhit of all that they do.”
[al-Anfal (8): 47]
From “Explanation to the Beautiful and Perfect Names of Allah” — Shaykh as-Sa’di (d.1376H)