Word by Word Analysis

وَأَنذِرْ بِهِ ٱلَّذِينَ يَخَافُونَ أَن يُحْشَرُوٓا۟ إِلَىٰ رَبِّهِمْ ۙ لَيْسَ لَهُم مِّن دُونِهِۦ وَلِىٌّ وَلَا شَفِيعٌ لَّعَلَّهُمْ يَتَّقُونَ 51

And warn by it [i.e., the Qur’ān] those who fear that they will be gathered before their Lord - for them besides Him will be no protector and no intercessor - that they might become righteous.