The word(s) "threaten" appears 32 time(s) in 32 verse(s) in Quran in Muhammad Habib Shakir translation.

(11) What! does he threaten you that when you are dead and become dust and bones that you shall then be brought forth?

(12) Far, far is that which you are threatened with.

(13) Say: O my Lord! if Thou shouldst make me see what they are threatened with:

(14) And most surely We are well able to make you see what We threaten them with.

(15) Then there comes to them that with which they are threatened,

(16) This is the hell with which you were threatened.

(17) And a believing man of Firon's people who hid his faith said: What! will you slay a man because he says: My Lord is Allah, and indeed he has brought to you clear arguments from your Lord? And if he be a liar, on him will be his lie, and if he be truthful, there will befall you some of that which he threatens you (with); surely Allah does not guide him who is extravagant, a liar:

(18) So be patient, surely the promise of Allah is true. So should We make you see part of what We threaten them with, or should We cause you to die, to Us shall they be returned.

(19) So leave them plunging into false discourses and sporting until they meet their day which they are threatened with.

(20) And he who says to his parents: Fie on you! do you threaten me that I shall be brought forth when generations have already passed away before me? And they both call for Allah's aid: Woe to you! believe, surely the promise of Allah is true. But he says: This is nothing but stories of the ancients.