The word(s) "authority" appears 38 time(s) in 38 verse(s) in Quran in Mohsin Khan translation.

(21) There (on the Day of Resurrection), Al-Walayah (protection, power, authority and kingdom) will be for Allah (Alone), the True God. He (Allah) is the Best for reward and the Best for the final end. (La ilaha illallah- none has the right to be worshipped but Allah).

(22) He said: "That (wealth, authority and power) in which my Lord had established me is better (than your tribute). So help me with strength (of men), I will erect between you and them a barrier.

(23) And they worship besides Allah others for which He has sent down no authority, and of which they have no knowledge; and for the Zalimun (wrong-doers, polytheists and disbelievers in the Oneness of Allah) there is no helper.

(24) Then We sent Musa (Moses) and his brother Harun‎‎ (Aaron), with Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) and manifest authority,

(25) Allah has promised those among you who believe and do righteous good deeds, that He will certainly grant them succession to (the present rulers) in the land, as He granted it to those before them, and that He will grant them the authority to practise their religion which He has chosen for them (i.e. Islam). And He will surely give them in exchange a safe security after their fear (provided) they (believers) worship Me and do not associate anything (in worship) with Me. But whoever disbelieves after this, they are the Fasiqun (rebellious, disobedient to Allah).

(26) Or have We revealed to them an authority (a Scripture), which speaks of that which they have been associating with Him?

(27) And he (Iblis - Satan) had no authority over them, - except that We might test him who believes in the Hereafter from him who is in doubt about it. And your Lord is a Hafiz (Watchful) over everything. (All-Knower of everything i.e. He keeps record of every person as regards deeds, and then He will reward them accordingly).

(28) "And we had no authority over you. Nay! But you were Taghun (transgressing) people (polytheists, and disbelievers).

(29) Or is there for you a plain authority?

(30) And indeed We sent Musa (Moses) with Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.), and a manifest authority,