﴿ بَلَىٰٓ ۚ إِن تَصْبِرُوا۟ وَتَتَّقُوا۟ وَيَأْتُوكُم مِّن فَوْرِهِمْ هَٰذَا يُمْدِدْكُمْ رَبُّكُم بِخَمْسَةِ ءَالَٰفٍۢ مِّنَ ٱلْمَلَٰٓئِكَةِ مُسَوِّمِينَ ﴾

“Nay, but if you are patient in adversity and conscious of Him, and the enemy should fall upon you of a sudden, your Sustainer will aid you with five thousand angels swooping down!"”

Please check ayah 3:129 for complete tafsir.