اَلرِّسَالَةُ إِلَى ٱلْعِبْرَانِيِّينَ 2:1

لِذَلِكَ يَجِبُ أَنْ نَتَنَبَّهَ أَكْثَرَ إِلَى مَا سَمِعْنَا لِئَلَّا نَفُوتَهُ،

Therefore we ought to give the more earnest heed to the things which we have heard, lest at any time we should let them slip.