Word by Word Analysis

إِنَّمَا ٱلسَّبِيلُ عَلَى ٱلَّذِينَ يَظْلِمُونَ ٱلنَّاسَ وَيَبْغُونَ فِى ٱلْأَرْضِ بِغَيْرِ ٱلْحَقِّ ۚ أُو۟لَـٰٓئِكَ لَهُمْ عَذَابٌ أَلِيمٌ 42

The cause is only against the ones who wrong the people and tyrannize upon the earth without right. Those will have a painful punishment.