The word(s) "secure" appears 22 time(s) in 21 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) Did the people of the towns feel secure against the coming of Our wrath by night while they were asleep?

(2) Or else did they feel secure against its coming in broad daylight while they played about (care-free)?

(3) Did they then feel secure against the plan of Allah?- but no one can feel secure from the Plan of Allah, except those (doomed) to ruin!

(4) If one amongst the Pagans ask thee for asylum, grant it to him, so that he may hear the word of Allah; and then escort him to where he can be secure. That is because they are men without knowledge.

(5) Do they then feel secure from the coming against them of the covering veil of the wrath of Allah,- or of the coming against them of the (final) Hour all of a sudden while they perceive not?

(6) Out of the mountains did they hew (their) edifices, (feeling themselves) secure.

(7) Do then those who devise evil (plots) feel secure that Allah will not cause the earth to swallow them up, or that the Wrath will not seize them from directions they little perceive?-

(8) Do ye then feel secure that He will not cause you to be swallowed up beneath the earth when ye are on land, or that He will not send against you a violent tornado (with showers of stones) so that ye shall find no one to carry out your affairs for you?

(9) Or do ye feel secure that He will not send you back a second time to sea and send against you a heavy gale to drown you because of your ingratitude, so that ye find no helper. Therein against Us?

(10) And We said thereafter to the Children of Israel, "Dwell securely in the land (of promise)": but when the second of the warnings came to pass, We gathered you together in a mingled crowd.