The necessity of combining faith with righteous deeds

وَبَشِّرِ ٱلَّذِينَ ءَامَنُوا۟ وَعَمِلُوا۟ ٱلصَّـٰلِحَـٰتِ أَنَّ لَهُمْ جَنَّـٰتٍ تَجْرِى مِن تَحْتِهَا ٱلْأَنْهَـٰرُ ۖ كُلَّمَا رُزِقُوا۟ مِنْهَا مِن ثَمَرَةٍ رِّزْقًا ۙ قَالُوا۟ هَـٰذَا ٱلَّذِى رُزِقْنَا مِن قَبْلُ ۖ وَأُتُوا۟ بِهِۦ مُتَشَـٰبِهًا ۖ وَلَهُمْ فِيهَآ أَزْوَٰجٌ مُّطَهَّرَةٌ ۖ وَهُمْ فِيهَا خَـٰلِدُونَ

And give good tidings to those who believe and do righteous deeds that they will have gardens [in Paradise] beneath which rivers flow. Whenever they are provided with a provision of fruit therefrom, they will say, "This is what we were provided with before." And it is given to them in likeness. And they will have therein purified spouses, and they will abide therein eternally.

وَأُدْخِلَ ٱلَّذِينَ ءَامَنُوا۟ وَعَمِلُوا۟ ٱلصَّـٰلِحَـٰتِ جَنَّـٰتٍ تَجْرِى مِن تَحْتِهَا ٱلْأَنْهَـٰرُ خَـٰلِدِينَ فِيهَا بِإِذْنِ رَبِّهِمْ ۖ تَحِيَّتُهُمْ فِيهَا سَلَـٰمٌ

And those who believed and did righteous deeds will be admitted to gardens beneath which rivers flow, abiding eternally therein by permission of their Lord; and their greeting therein will be, "Peace!"