Quran 21:49 from Surah Al-Anbiyaa on Divine Marvels.
ٱلَّذِينَ يَخۡشَوۡنَ رَبَّهُم بِٱلۡغَيۡبِ وَهُم مِّنَ ٱلسَّاعَةِ مُشۡفِقُونَ
English translation: Those who fear their Lord in the unseen and they of the Hour (are) afraid
Transliteration: alladhina yakhshawna rabbahum bil-ghaybi wahum mina al-sa'ati mush'fiquna