No One will help You and No One can grant Sustenance except for Allah
Allah addresses the idolators who worship others besides Him, seeking help and sustenance from them. Allah rebukes them for what they believe, and He informs them that they will not attain that which they hope for. Allah says,
(Who is it besides the Most Gracious that can be an army to you to help) imeaning, there is no protector or helper for you besides Him. This is the reason that Allah says,
إِنِ الْكَـفِرُونَ إِلاَّ فِى غُرُورٍ
(The disbelievers are in nothing but delusion.) Then Allah says,
أَفَمَن يَمْشِي مُكِبًّا عَلَىٰ وَجْهِهِ أَهْدَىٰ أَمَّن يَمْشِي سَوِيًّا عَلَىٰ صِرَاطٍ مُّسْتَقِيمٍ (Then, tell me whether the one who walks falling down [ frequently ] on his face is better guided or the one who walks on a straight path...67:22).
The phrase 'the one who walks on a straight path' refers to the believer who is rightly guided. The next verse describes the manifestation of Divine power and wisdom in the creation of man, thus:
Tazkirul Quran
Maulana Wahiduddin KhanOn ayahs 21–23
Birds flying in the air, the emergence of man’s sustenance from the soil and similar events are most wonderful. If one gives serious consideration to such things, one will become caught up in the realisation of God. But man is so forgetful that he indulges in arrogance in a world in which the natural phenomena visible all around him ought to teach him the lesson of obedience to God.
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.