18. The gravest of sins is the sin upon which the sinner persists. Leave a Comment / Vices And Those Who Commit Them / By technorthstar3@gmail.com 18. The gravest of sins is the sin upon which the sinner persists. 18 أعْظَمُ الذُّنُوبِ ذَنبٌ أصَرَّ عَلَيْهِ صاحِبُهُ. Share on Whatsapp Bookmark (0) Please login to bookmark Username or Email Address Password Remember Me No account yet? Register