Those were not causing failure [to Allah] on earth, nor did they have besides Allah any protectors. For them the punishment will be multiplied. They were not able to hear, nor did they see.
English Transliteration
Olaika lam yakoonoo muAAjizeena fee alardi wama kana lahum min dooni Allahi min awliyaa yudaAAafu lahumu alAAathabu ma kanoo yastateeAAoona alssamAAa wama kanoo yubsiroona
Tafsir of Verse 20
they are unable to frustrate Him on earth and they have no protectors, apart from God. For them the chastisement shall be doubled; they could not hear, neither did they see.
They will in no wise frustrate (His design) on earth, nor have they protectors besides Allah! Their penalty will be doubled! They lost the power to hear, and they did not see!