Indeed, the religion in the sight of Allah is Islam. And those (3:19)

Almuntakhab Fi Tafsir Alquran Alkarim

The religion, the system of faith and worship, commended by Allah is Islam or the recognition on the part of man of Allah’s Omnipotence and Authority and His power to control destiny besides acceptance of this feeling as a standard of spiritual and practical life. Yet not until they had received the divine discourse and intellectual acquaintance of the truth did Ahl al-Kitab fall into dispute and become divided through mutual envy and ill intention. He who disregards Allah’s revelations and visible signs shall find that Allah is indeed swift in putting the law in execution

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(3:19) The true religion with Allah is Islam. *16 The People of the Book adopted many different ways rather than follow the true way of Islam even after the knowledge of truth had reached them, and this merely to commit excesses against one another. *17 Let him who refuses to follow the ordinances and directives of Allah know that Allah is swift in His reckoning.

Indeed, the religion in the sight of Allah is Islam. And those meaning

*16). In the sight of God there is only one system of life and way of conduct which is both in accord with reality and morally right. This consists of man's acknowledging God as his Lord and the sole object of his worship and devotion; of surrendering himself unreservedly to God in obedience and service. In doing so he should follow in toto the guidance communicated by God through His Messengers rather than try to devise ways of serving God according to his own lights. This mode of thought and action is known as Islam, and it is only reasonable that the Lord and Creator of the universe should accept nothing less from His creatures and servants. In his folly man thinks that he has the right to believe in and follow every doctrine that comes his way whether it be atheism or idolatry. In the sight of the Sovereign of the universe, however, all such attitudes amount to nothing short of rebellion against God.
*17). This shows that the religion of every Messenger of God, in every age and clime, was none other than Islam (submission to God). Likewise, every Divine book, in whichever language it was revealed, and to whichever people it was addressed, contained the teachings of Islam. The various religions which have spread among mankind are distortions of this true, original religion, and are the result of tampering. Coveting privileges over and above those to which they were entitled, people altered the beliefs, principles and injunctions of the true religion in a manner conducive to their own interests.
 

Indeed, the religion in the sight of Allah is Islam. And those meaning in Urdu

اللہ کے نزدیک دین صرف اسلام ہے اس دین سے ہٹ کر جو مختلف طریقے اُن لوگوں نے اختیار کیے، جنہیں کتاب دی گئی تھی، اُن کے اِس طرز عمل کی کوئی وجہ اس کے سوا نہ تھی کہ انہوں نے علم آ جانے کے بعد آپس میں ایک دوسرے پر زیادتی کرنے کے لیے ایسا کیا اور جو کوئی اللہ کے احکام و ہدایات کی اطاعت سے انکار کر دے، اللہ کو اس سے حساب لیتے کچھ دیر نہیں لگتی ہے