Abbas - Tanwîr al-Miqbâs min Tafsîr Ibn ‘Abbâs
(They measure not Allah His rightful measure) they do not magnify Allah as He deserves to be magnified. This was revealed about the Jews when they claimed that 'Uzayr was the son of God, and due to their sayings: “Allah is poor while we are rich,”, “Allah's hands are tight because of miserliness” and that Allah rested after He finished creating the heavens and the earth. (Lo! Allah is Strong) against His enemies, (Almighty) He is Mighty in His vengeance against the Jews.
They measured not God with the rightful due of His measure. Surely God is strong, exalted.
WāsiṬī said, “Creatures do not recognize the rightful due of His measure-only the Real.” No one knows His measure save He. No one can recognize Him as is worthy of Him save He. Intellects are confounded and understandings bewildered at the beginnings of the shining of His majesty. Prophets and messengers came back on the feet of incapacity from the threshold of the reality of recognizing Him.
O chevalier, tomorrow when the servants reach the exaltedness of union with Him and see the marks bearing witness to proximity, He will bestow the vision of Himself in the measure of your capacity, not in the measure of His tremendousness and majesty. This is why it has been said, “He spoke to Moses in respect of Moses. Had He spoken to Moses in respect of His tremendousness, Moses would have melted.”
They do not esteem God, exalt Him, with the esteem He deserves, with the exaltedness [He deserves], for they ascribe to Him partners who can neither protect themselves from a fly, nor retaliate against it. Truly God is Strong, Mighty, Victor.
(Verily, those on whom you call besides Allah, cannot create a fly, even though they combine together for the purpose.) Even if all the idols and false gods whom you worship were to come together to create a single fly, they would not be able to do that. Imam Ahmad recorded that Abu Hurayrah recorded the Marfu` report:
("Who does more wrong than one who tries to create something like My creation Let them create an ant or a fly or a seed like My creation!'') This was also recorded by the authors of the Two Sahihs via `Umarah from Abu Zur`ah from Abu Hurayrah, who said that the Prophet said: a
(And if the fly snatches away a thing from them, they will have no power to release it from the fly.) They are unable to create a single fly and, moreover, they are unable to resist it or take revenge against it if it were to take anything from the good and perfumed thing on which it lands. If they wanted to recover that, they would not be able to, even though the fly is the weakest and most insignificant of Allah's creatures. Allah says:
ضَعُفَ الطَّالِبُ وَالْمَطْلُوبُ
(So weak are the seeker and the sought.) Ibn `Abbas said, "The seeker is the idol and the sought is the fly.'' This was the view favored by Ibn Jarir, and it is what is apparent from the context. As-Suddi and others said, "The seeker is the worshipper, and the sought is the idol.'' Then Allah says:
مَا قَدَرُواْ اللَّهَ حَقَّ قَدْرِهِ
(They have not regarded Allah with His rightful esteem.) meaning, they have not recognized the might and power of Allah when they wor- ship alongside Him those who cannot even ward off a fly, because they are so weak and incapable.
إِنَّ اللَّهَ لَقَوِىٌّ عَزِيزٌ
(Verily, Allah is All-Strong, All-Mighty.) means, He is the All-Strong Who, by His might and power, created all things.
(Verily, Allah is the Provider, Owner of power, the Most Strong.) 51:58.
(All-Mighty) means, He has subjugated and subdued all things, and there is none that can resist Him or overcome His might and power, and He is the One, the Subduer.
Maududi - Sayyid Abul Ala Maududi - Tafhim al-Qur'an
This parable has been cited to impress upon the idol-worshipers that their deities are absolutely powerless, for even if they all collaborated to create an insignificant thing like a fly, they could not; nay, even if a fly snatched away anything from them they could not prevent it. This shows how weak they themselves are and how powerless are the idols they supplicate.