[Pooya/Ali Commentary 51:57] Allah is free from all needs. Providing sustenance to His creatures is as good as "feeding Him." Allah is the sole supplier of the means of sustenance to all. The creatures in aggregate constitute one family of Allah's creation. Therefore to serve the creation is to serve Allah. Aqa Mahdi Puya says: It clarifies that the purpose of creation (worship and obedience) is of no advantage or benefit to Allah. On the contrary, it is in the interest of the creatures to abide by His commands.