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,

﴿أَمَّنْ هَـذَا الَّذِى هُوَ جُندٌ لَّكُمْ يَنصُرُكُمْ مِّن دُونِ الرَّحْمَـنِ﴾

(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,

﴿أَمَّنْ هَـذَا الَّذِى يَرْزُقُكُمْ إِنْ أَمْسَكَ رِزْقَهُ﴾

(Who is it that can provide for you if He should withhold His provision) meaning, who is it that can provide for you if Allah cuts off your sustenance There is no one who gives, withholds, creates, provides and helps other than Allah alone, Who has no partner. This proves that they know this, yet they still worship others besides Him. Thus, Allah says,

﴿بَل لَّجُّواْ﴾

(Nay, but they continue) meaning, they persist in their transgression, lying and misguidance.

﴿فِى عُتُوٍّ وَنُفُورٍ﴾

(to be in pride, and flee.) meaning, they continue in obstinance, arrogance and fleeing away from the truth. They do not listen to it nor do they follow it.