Shaykh As-Sa’dee said in his book “Explanation of the Beautiful and Perfect Names of Allah”:
Ar-Raqeeb (The All-Watchful)
The One Who sees what is hidden in the hearts and the One Who charges every soul for what it has earned, the One Who preserves all that is in creation and regulates them with the best of organisation and the most complete and perfect planning.
O Mankind! Be dutiful to your Lord Who created you from a single person, and from him He created his wife, and from them both He created many men and women. Fear Allah through whom you demand your mutual rights, and (do not cut the relations of the womb). Surely Allah is Raqeeb over you. [An-Nisa’ 4:1]