Abbas - Tanwîr al-Miqbâs min Tafsîr Ibn ‘Abbâs
(Those who hide the proofs) the commands, prohibitions and the signs mentioned in the Torah (and the guidance) i.e. the description given there of Muhammad (pbuh) and his feature (which We revealed) exposited, (after We had made it clear) to the Children of Israel (in the Scripture) in the Torah: (such are accursed of Allah) Allah will torment them in the grave (and are accursed of those who have the power to curse) all created beings, save human beings and jinn, will curse them upon hearing their screams from the grave.
The following was revealed concerning the Jews: Those who conceal, from people, the clear proofs and the guidance that We have revealed, such as the ‘stoning’ verse and the description of Muhammad (s), after We have shown them clearly in the Scripture, the Torah — they shall be cursed by God, that is, He will move them far away from His mercy, and by the cursers, the angels, believers, or by every single thing, when they supplicate that they be cursed.
Those who conceal the clear proofs and the guidance that We have revealed, that is, [those] who conceal what We have effused upon them of the clear proofs of the lights of gnoses and the knowledge of the self-disclosures of the acts and the attributes and the guidance of the states and the stations, or the guidance to the affirmation of the Unity of the Essence via certain knowledge. For what is eyewitnessed cannot be concealed by means of variegations of the soul or the heart, [variegations] that mask the unveilings in the heart and the mysterious communions of the night and the spiritual witnessings, after We have shown them to the people clearly [in the Scripture], in the Book of their intellects, [intellects] illumined by the light of the pursuit that perceives the vestiges of the lights of the hearts and the spirits with the blessing of companionship - they shall be cursed by God, He will reject them and banish them, and by the cursers, from among the High Council, [who curse them] by forsaking them and refraining from reinforcing them from the world of support and light, and [by the cursers] from among the yearning prepared ones, the light of whose hearts they [the now accursed] had enjoyed the intimacy and on whose effusion of light they [the accursed] had drawn by the strength of their sincerity, and in whose constant companionship they had found rest, enjoying their blessedness and their breaths at the rising radiance of the gleam of their states, [cursing them] by abandoning them and relinquishing their companionship, rejecting them and turning away from them because of their [the accursed ones'] loss of that [light] and their [the cursers'] sensing the sullying of their purity.
The Eternal Curse for Those Who hide Religious Commandments
These Ayat sternly warn against those who hide the clear signs that the Messengers were sent with which guide to the correct path and beneficial guidance for the hearts, after Allah has made such aspects clear for His servants through the Books that He revealed to His Messengers. Abu Al-`Aliyah said that these Ayat, "were revealed about the People of the Scripture who hid the description of Muhammad.'' Allah then states that everything curses such people for this evil act. Certainly, just as everything asks for forgiveness for the scholar, even the fish in the sea and the bird in the air, then those who hide knowledge are cursed by Allah and by the cursers. A Hadith in the Musnad, narrated through several chains of narrators, that strengthens the overall judgment of the Hadith, states that Abu Hurayrah narrated that Allah's Messenger said:
(Verily, those who conceal the clear proofs, evidences and the guidance, which We have sent down,)''
Mujahid said, "When the earth is struck by drought, the animals say, `This is because of the sinners among the Children of Adam. May Allah curse the sinners among the Children of Adam.'''
Abu Al-`Aliyah, Ar-Rabi` bin Anas and Qatadah said that
(and cursed by the cursers) means that the angels and the believers will curse them. Moreover, a Hadith states that everything, including the fish in the sea, asks for forgiveness for the scholars. The Ayah (2:159 above) states that those who hide the knowledge will be cursed, (in this life and) on the Day of Resurrection, by Allah, the angels, all humanity, and those who curse (including the animals) each in its own distinct way. Allah knows best.
From this punishment, Allah excluded all who repent to Him:
(These, I will accept their repentance. And I am the One Who accepts repentance, the Most Merciful.)
This Ayah also indicates that those who used to call to innovation, or even disbelief, and repent to Allah, then Allah will forgive them. Allah afterwards states that those who disbelieve in Him and remain in this state until they die, then:
(it is they on whom is the curse of Allah and of the angels and of mankind, combined. They will abide therein (under the curse in Hell).)
Therefore, they will suffer the eternal curse until the Day of Resurrection and after that in the fire of Jahannam, where,
لاَ يُخَفَّفُ عَنْهُمُ الْعَذَابُ
(their punishment will neither be lightened)
Hence, the torment will not be decreased for them,
وَلاَ هُمْ يُنظَرُونَ
(nor will they be reprieved.)
The torment will not be changed or tempered for even an hour. Rather, it is continuous and eternal. We seek refuge with Allah from this evil end.
Cursing the Disbelievers is allowed
There is no disagreement that it is lawful to curse the disbelievers. `Umar bin Al-Khattab and the Imams after him used to curse the disbelievers in their Qunut (a type of supplication) during the prayer and otherwise. As for cursing a specific disbeliever, some scholars stated that it is not allowed to curse him, because we do not know how Allah will make his end. Others said that it is allowed to curse individual disbelievers. For proof, they mention the story about the man who was brought to be punished repeatedly for drinking (alcohol), a man said, "May Allah curse him! He is being brought repeatedly (to be flogged for drinking).'' Allah's Messenger said:
(Do not curse him, for he loves Allah and His Messenger).
This Hadith indicates that it is allowed to curse those who do not love Allah and His Messenger. Allah knows best.
Maududi - Sayyid Abul Ala Maududi - Tafhim al-Qur'an
The greatest crime of the Jewish scholars was that they had made the teachings of their Scriptures the monopoly of their rabbis and professional scribes. Not to speak of imparting these to the Gentiles, they did not teach them even to the common Jews. As a result, the Jews began to practise irreligious things because of their ignorance. Even then their rabbis did not do anything to reform and educate them. Instead of this, they went on, directly or indirectly, certifying every irreligious practice as legal merely for the sake of winning and retaining popularity. The Muslims are being forewarned that as leaders of the world they should propagate and spread the Guidance given to them and should not keep it back from the common people as the Jewish rabbis and scribes did.
Those who conceal the clear proofs and the guidance that We have revealed after We have shown them clearly in the scripture-they shall be cursed by God and by those who curse This verse alludes to those to whom the Real سبحانه has unveiled knowledge of the good manners ādāb of traveling but who have become stingy in revealing [this knowledge] to aspirants [who seek] advice and guidance. In that moment they become worthy of wrath. One fears for them that the blessing will be removed from their knowledge when they fall short in it just as they held back in imparting [that knowledge] to the deserving.
(Those who hide the proofs and the guidance which We revealed…) [2:159]. This was revealed about the scholars of the people of the Book and their concealment of the verse of stoning [the adulterers who are married] and the matter of Muhammad, Allah bless him and give him peace.