Allah is self-respecting and a believer is also self-respecting and the respect of Allah is injured if a believer does what He has forbidden him to do.  

قَالَ رَسُولُ اللَّهِ ﷺ إِنَّ اللَّهَ يَغَارُ وَإِنَّ الْمُؤْمِنَ يَغَارُ وَغَيْرَةُ اللَّهِ أَنْ يَأْتِيَ الْمُؤْمِنُ مَا حَرَّمَ عَلَيْهِ