19وَلا تَكونوا كَالَّذينَ نَسُوا اللَّهَ فَأَنساهُم أَنفُسَهُم ۚ أُولٰئِكَ هُمُ الفاسِقونَMuhammad Asadand be not like those who are oblivious of God, and whom He therefore causes to be oblivious of [what is good for] their own selves: [for] it is they, they who are truly depraved!1I.e., by having made a deliberately wrong use of the faculty of reason with which God has endowed man, and - by remaining oblivious of Him - having wasted their own spiritual potential.