59:13 Nay, [O believers,] you arouse in their bosoms a fear more intense than [even their fear of] God: this, because they are people who fail to grasp the truth.*
Muhammad Asad (The Message Of Quran)
Dictionaries
Ejtaal Arabic Almanac: Lane's Lexicon, Hans Wehr, Lisan al-Arab and others
whereas those who are bent on denying the truth will not cease to be in doubt about Him until the Last Hour comes suddenly upon them and [supreme] suffering befalls them on a Day void of all hope.*
or He gives both male and female [to whomever He wills], and causes to be barren whomever He wills: for, verily, He is all-knowing, infinite in His power.*