The place where the word: كَذَٰلِكَ (kadhalik: translated above by the words, 'as well' ) appears in verse 28 just before: كَذَٰلِكَ إِنَّمَا يَخْشَى اللَّـهَ مِنْ عِبَادِهِ الْعُلَمَاءُ (Only those of His slaves fear Allah who are knowledgeable), but in the translation above it has been separated from the next verse by a full stop, because this is the place of a stop (waqf) according to the consensus of the majority of commentators and scholars. As such, it is a sign denoting that this word is related to the previous subject, that is, the creation of all that exists in categories and kinds and different colors is a very special sign of the power and wisdom of Allah Ta’ ala.

Then there are narrations that suggest that this word is related to the next sentence. If this interpretation is adopted, the full stop would be appropriate after the words, 'having different colors, and the word 'kadhalika' should be translated as 'similarly' in which case, it would mean that 'the way fruits, mountains, human beings and other life forms are marked out by different colors, similarly, there are different degrees among people who have the awe or fear of Allah in their hearts. Someone may have achieved its highest degree. Others may have arrived at what is less than that. Then, the whole thing depends on knowledge. Whoever has a certain degree of knowledge will have a corresponding degree of the awe or fear of Allah. (Ruh-ul-Ma’ ani)

In previous verses, it was said: إِنَّمَا تُنذِرُ‌ الَّذِينَ يَخْشَوْنَ رَ‌بَّهُم بِالْغَيْبِ (18) This is to give solace to the Holy Prophet ﷺ which means, 'when you warn people and convey the message of Allah to them, only those who have the awe of Allah without having seen Him get the maximum benefit out of it.' In symmetry with this, the present verse: إِنَّمَا يَخْشَى اللَّـهَ مِنْ عِبَادِهِ الْعُلَمَاءُ (Only those of His slaves fear Allah who are knowledgeable - 35:28) has mentioned people about whom it can be said that they have the awe of Allah and fear Him as is His due. Then, there is another parallelism here. Mentioned earlier were disbelievers and deniers along with the different states they were submerged in. In the present verse, what has been put forth is the opposite of it. The verse talks about the men of Allah (the auliya' of Allah) particularly. The word:إِنَّمَا (innama) is used in the Arabic language to describe hasr or exclusiveness. Therefore, this sentence obviously means that only the ` Ulama' (the knowing, the learned, the initiated) fear Allah or have the genuine awe of Allah. But Tafsir authority, Ibn ` Atiyyah and others said that the wayإِنَّمَا (innama) is employed to show exclusiveness, it is also used to describe the singularity of something, and the later is what is meant here - that fearing Allah and remaining in awe of Him is a specially incumbent attribute of the ` Ulama'. It does not necessarily imply that those other than them have no such fear and awe in them. (Al-Bahr ul-Muhit, Abu Hayyan)

And the word: عُلَمَاءُ (Ulama' ) in the verse means people who have due knowledge of the being and attributes of Allah Ta’ ala and who have the fact of His power and control, and His favors and blessings, on what He has created, always in sight. In the terminology of the Qur'an, no one is considered to be an ` alim simply by virtue of knowing the Arabic language, grammar and rhetoric unless he has acquired the knowledge and understanding of the attributes of Allah Ta’ ala in the manner stated above.

Explaining this verse, Hasan al-Basri (رح) said: ` Alim is a person who fears Allah in private and in public, and likes what Allah likes him to do, and hates what is detestable in the sight of Allah.

And Sayyidna ` Abdullah Ibn Masud ؓ said:

لیَسَ العِلمُ الحدِیثِ و لٰکِنّ العِلمَ عَن کَثرَۃِ الخَدیَۃِ

Memorizing many ahadith (or, talking a lot) is no 'Um (knowledge). Instead, (real) knowledge comes when one has the awe and fear of Allah with it.

In short, the degree of the fear of Allah one has shall go on to make him an ` Alim of that very degree. And Ahmad Ibn Salih al-Misri said: Fear of Allah cannot be recognized on the basis of someone's prolific reporting of events or abundance of knowledge, in fact, it is identified through one's adherence to the Book of Allah and the Sunnah of the Prophet. (Ibn Kathir)

Shaykh Shahabuddin as-Suhrawardi (رح)) said: This verse clearly indicates that a person who has no fear of Allah is no ` alim. (Mazhari) This is confirmed by the sayings of the early forbears of Islam (Salaf).

Sayyidna Rabi' Ibn Anas ؓ said:

مَن لَّم یَخش فَلَیسَ بِعَالِمِ

One who does not fear Allah is not an Vim.

And early commentator, Mujahid said:

انَّما العَالِمُ مَن خَشِیَ اللہَ

Only he who fears Allah is the (real) Vim.

Someone asked Sa'd Ibn Ibrahim: Who knows Divine Law at its best in the city of Madinah? He said: a;J r mti (He who is the most fearing of his Lord).

And Sayyidna ` Ali al-Murtada ؓ defined a Faqih (master of Islamic jurisprudence) by saying:

اِنَّ الفَقِیہِ حَقَّ الفَقِیہِ مَن لَّم یَقنط النَّاسَ مِن رَّحمَۃِ اللہِ وَ لَم یرخص لَھُم فِی مَعَاصِی اللہِ تَعَالٰی ، وَلم یُؤمِنھُم مَّن عَذَابِ اللہِ تَعَالٰی وَ لَم یَدَعُ القُرآنَ رَغبَہُ عَنہُ الٰی غَیرِہٖ اَنَّہ لَاخَیرَ فِی عِبَادَۃِ لَّاعِلمَ فِیھَا وَلَا عِلمِ لَّا فِقہ فِیہِ ولَاقِرَاَء لَّاتَدَبُّرَ فِیہِ (قرطبی)

A Faqih, perfect as he must be, is he who would not make people lose hope in the mercy of Allah, nor leave them free to indulge in acts of disobedience to Him, nor give them the guarantee of remaining safe from the punishment of Allah, nor forsake the Qur'an by indulging in pursuits other than it. (And he said): Verily, there is no good in an act of worship that is without knowledge, and there is no good in a knowledge that is without understanding, and there is no recitation (Qira'ah of the Qur'an) without deliberation in it. (Qurtubi)

The clarifications appearing above also help remove the doubt about many ` Ulama' who do not seem to have the kind of awe and fear of Allah required of them. These clarifications tell us that, in the sight of Allah, the bland knowledge of Arabic is not what 'ilm is, and certainly, the one who is proficient in it is not an ` Alim. Anyone who does not have the fear of Allah in his heart is simply not an ` Alim in the terminology of the Qur'an.

However, at times, awe and fear of Allah are rooted in one's creed and reason because of which one adheres to the injunctions of the Shari’ ah as a matter of obligation. Then, there are occasions when this awe and fear of Allah become the very state of one's existence and rise to the degree of a firmly ingrained asset whereby the readiness to follow the Shari’ ah becomes a natural reflex. The first degree of the awe and fear of Allah is mandatory and, for an ` Alim necessary. The second degree is certainly superior and sublime, but not necessary. (Bayan ul-Qur an)