those only are believers whose hearts become full of fear when allah is mentioned and when his communications are recited to them they increase them in faith and in their lord do they trust.
إنما المؤمنون الذين إذا ذكر الله وجلت قلوبهم وإذا تليت عليهم آياته زادتهم إيمانا وعلى ربهم يتوكلون