They believe in Allāh and the Last Day, and they enjoin what is right and forbid what is wrong and hasten to good deeds. And those are among the righteous.
Virtues of the People of the Scriptures Who Embrace Islam
Muhammad bin Ishaq and others, including Al-Awfi who reported it from Ibn Abbas, said;"These Ayat were revealed about the clergy of the People of the Scriptures who embraced the faith. For instance, there is Abdullah bin Salam, Asad bin Ubayd, Tha`labah bin Sa`yah, Usayd bin Sa`yah, and so forth.
This Ayah means that those among the People of the Book whom Allah rebuked earlier are not at all the same as those among them who embraced Islam.Hence Allah's statement,
لَيْسُواْ سَوَاء ...
Not all of them are alike."Therefore, these two types of people are not equal, and indeed, there are believers and also criminals among the People of the Book, just as Allah said,
In verse 110, it was said that among the people of the Book there are those who believe, yet most of them are disbelievers. Details appear in the present verse which gives a complementary profile of those who believed from among the people of the Book, and by becoming Muslims, they adopted the distinguishing hallmarks of the Faith that go to make believers the best of communities.
Soon after praising those who had embraced Islam from among the people of the Book, the text censures those of them who did not embrace Islam and insisted on retaining their stance of disbelief, not realizing that their wealth and their children will be unable to save them from the punishment of Allah and Hell shall be their eternal abode.
Verse 117 declares through a similitude that disbelievers simply waste what they spend in this worldly life, for belief in Islam is a pre-condition in order that such spendings be acceptable with Allah, of whatever sort they may be. The similitude stresses the fact that disbelievers inflict this injustice upon themselves when their spendings go to waste in this world and remain rewardless in the Hereafter. If they were not to wrong themselves, if they were to embrace Islam, they would have been like other Muslims who, on suffering a worldly loss, are compensated by Allah through reward and forgiveness of sins, as reported in ahadith.
Tazkirul Quran
Maulana Wahiduddin KhanOn ayahs 112–114
Subsequently, God sent His religion in its original form through the Prophet Muhammad. Now the Muslims have undertaken the obligation of guiding people to the true religion of submission to God. The assignment of this role demands that they be true believers in God. It devolves upon them to enjoin goodness upon the world and to inform mankind of whatever is evil in the eyes of God. Since this is a mission assigned by Almighty God, He Himself has guaranteed to help His emissaries surmount all obstacles to their performing this task. Those who come forward for this divine mission have God’s pledge that their opponents will not be able to inflict any real harm upon them.
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.