Translation for 39:13

قُلۡ إِنِّيٓ أَخَافُ إِنۡ عَصَيۡتُ رَبِّي عَذَابَ يَوۡمٍ عَظِيمٖ ١٣
Say, “I truly fear—if I were to disobey my Lord—the torment of a tremendous Day.”