سُبْحَانَ ٱللَّٰهِ
Holy Qur'an
Al-Qur'an
Kids Qur'an
I.e., anybody who would "mediate" between Him and any of His creatures. As is evident from the sequence (as well as from {17:56-57}), this passage relates, in particular, to the attribution of divine or semi-divine qualities to saints and angels and to the problem of their "intercession" with God.
Other objects of worship, such as Self, or Money, or Power, or things we imagine will bring us luck or prosperity, though they can do nothing of the kind.
The false gods have no power whatever either in heaven or on earth, either in influencing our spiritual life or our ordinary worldly life. To suppose that they have some share, or that they can give some help to Allah, even though Allah is Supreme, is both false and blasphemous. Allah is One and Supreme, without sharer, helper, or equal.