Those deities can render them no help. Yet these devotees act as

﴿لَا يَسۡتَطِيعُونَ نَصۡرَهُمۡ وَهُمۡ لَهُمۡ جُندٞ مُّحۡضَرُونَ ﴾
[يسٓ: 75]

Those deities can render them no help. Yet these devotees act as though they were an army in waiting for them

﴿لا يستطيعون نصرهم وهم لهم جند محضرون﴾ [يسٓ: 75]

Abdel Haleem
though these could not do so even if they called a whole army of them together

Abdul Hye
They cannot help them, yet, they will be brought forward as troops against those who worshipped them (at the time of Reckoning)

Abdullah Yusuf Ali
They have not the power to help them: but they will be brought up (before Our Judgment-seat) as a troop (to be condemned)

Abdul Majid Daryabadi
They are not able to give them succour; whereas they shall be against them host brought forward

Ahmed Ali
They will not be able to help them and will be brought (to Us) as their levied troops

Aisha Bewley
They cannot help them even though they are an army mobilised in their support

A. J. Arberry
They cannot help them, though they be hosts made ready for them

Ali Quli Qarai
[Yet] they cannot help them, while they [themselves] are ready warriors for them