Faith and doing Righteous Deeds equals Salvation in all Times

After Allah described the condition - and punishment - of those who defy His commands, fall into His prohibitions and transgress set limits by committing prohibited acts, He stated that the earlier nations who were righteous and obedient received the rewards for their good deeds. This shall be the case, until the Day of Judgment. Therefore, whoever follows the unlettered Messenger and Prophet shall acquire eternal happiness and shall neither fear from what will happen in the future nor become sad for what has been lost in the past. Similarly, Allah said,

أَلا إِنَّ أَوْلِيَآءَ اللَّهِ لاَ خَوْفٌ عَلَيْهِمْ وَلاَ هُمْ يَحْزَنُونَ

The previous verse spoke of how the Israelites drew upon themselves the wrath of Allah through their habitual insolence and disobedience. Now, this account may lead the listeners, or the Jews themselves, to suppose that, in view of such transgression, their Taubah (repentance), if they agree to offer it, would not be acceptable to Allah. In order to dispel such a misgiving, the present verse lays down a general principle: no matter how a man has been behaving earlier, so long as he submits himself fully to the commandments of Allah in his beliefs and in his deeds both, he is acceptable to Allah, and will get his reward. It is obvious enough that after the revelation of the Holy Qur'an, which is the last message of Allah, perfect obedience to Allah can only mean accepting Islam and following the Last Prophet Muhammad ﷺ 23 The verse, in effect, assures everyone that once a man has accepted Islam, all his former transgressions, whether in the matter of beliefs or in that of deeds, will be forgiven, and he will become worthy of receiving the rewards of the other world.

23.Contrary to the flaccid fancies of some "modernizers" who are very happy with themselves over their "liberalism" and "tolerance", the present verse does not open the way to salvation for each and every "man of good will" irrespective of the creed he follows. If one reads the verse in its proper context and along with other relevant verses of the Holy Qur'an, one will easily see that the verse, in fact, promises salvation in the other world only to those who accept Islam. It is an invitation to Islam extended to the Jews, the Christians, the Sabeans and, as a matter of fact, to the followers of all possible religions, and even to non-believers --specific names only serve as examples.