Allaah (The Most High) said:

لَيْسُوا سَوَاءً ۗ مِّنْ أَهْلِ الْكِتَابِ أُمَّةٌ قَائِمَةٌ يَتْلُونَ آيَاتِ اللَّهِ آنَاءَ اللَّيْلِ وَهُمْ يَسْجُدُونَ

يُؤْمِنُونَ بِاللَّهِ وَالْيَوْمِ الْآخِرِ وَيَأْمُرُونَ بِالْمَعْرُوفِ وَيَنْهَوْنَ عَنِ الْمُنكَرِ وَيُسَارِعُونَ فِي الْخَيْرَاتِ وَأُولَٰئِكَ مِنَ الصَّالِحِينَ

Not all of them are alike; a party of the people of the Scripture stand for the right, they recite the Verses of Allah during the hours of the night, prostrating themselves in prayer. They believe in Allah and the Last Day; they enjoin Al-Ma’ruf (Islamic Monotheism, and following Prophet Muhammad ) and forbid Al-Munkar (polytheism, disbelief and opposing Prophet Muhammad ; and they hasten in (all) good works; and they are among the righteous. [3:113-114]