Word by Word Analysis

وَلَوْ أَنَّهُمْ أَقَامُوا۟ ٱلتَّوْرَىٰةَ وَٱلْإِنجِيلَ وَمَآ أُنزِلَ إِلَيْهِم مِّن رَّبِّهِمْ لَأَكَلُوا۟ مِن فَوْقِهِمْ وَمِن تَحْتِ أَرْجُلِهِم ۚ مِّنْهُمْ أُمَّةٌ مُّقْتَصِدَةٌ ۖ وَكَثِيرٌ مِّنْهُمْ سَآءَ مَا يَعْمَلُونَ 66

And if only they had upheld [the law of] the Torah, the Gospel, and what has been revealed to them from their Lord [i.e., the Qur’ān], they would have consumed [provision] from above them and from beneath their feet. Among them are a moderate [i.e., acceptable] community, but many of them - evil is that which they do.