Sura 3 Ali 'Imran (Family of Imran), ayah 139

1. وَلَا تَهِنُوا وَلَا تَحْزَنُوا وَأَنْتُمُ الْأَعْلَوْنَ إِنْ كُنْتُمْ مُؤْمِنِينَ

   So do not weaken and do not grieve, and you will be superior if you are (true) believers.

   3:139

Translation: Saheeh International