Now that we have gone through the axiom of monotheism and accepted it as a logical and rational principle, we should note that this belief is much more complicated than it seems. In order to reach a firm belief in the existence of God and His Oneness, one has to follow each of its stages.

These degrees include “unity of the essence of Allah”, “unity of the attributes of Allah”, “unity in what Allah does” and “unity in worship”. The first three of these belong to the realm of theoretical monotheism, while the last one is among practical monotheism. Here we will have a brief look at each of these steps.

1. Unity of the Essence of Allah

This stage of monotheism is defined as believing that God is One and Unique in His essence. The very first thing that one assumes regarding Allah is that of His Self-dependence; He is a being who is not dependent on any other beings in any way, while everything depends on Him and seeks His help.

Secondly, one has to believe in His Creatorship; that He is the creator and the ultimate source of all the existing things, all things are from Him, and He is not from anything. Accordingly, He is called the First Cause. The unity of essence, thus, means that this being is not multiplicable, and there is nothing like it. Since the self-existing truth is one, then this world has only one source and one end; it has neither originated from various sources nor will return to various ones, the whole universe has one center, one pole, and orbit.

2. Unity of the Essence and Attributes of Allah

It is defined as the recognition that the essence and the attributes of Allah are identical and that His various attributes are not separate from each other. While the Unity, in essence, refers to God’s Oneness, denying the existence of any peer or like for Him, the Unity in attributes means the negation of any kind of multiplicity or plurality within His essence.

All the attributes implying perfection and beauty belong to Him, and they are not at all separate from Him. The separation of the essence from the attributes and their separation from each other are the characteristics of a limited being, while God is infinite and such characteristics cannot be ascribed to Him. Accordingly, Allah has attributes which are unlimited – like His own self – and identical with His essence.

3. Unity in What Allah Does

The Unity of His work is to recognize that the world with all its systems is the work of Allah alone and has originated from His will only. Nothing in this world has occurred on its account and independent from God; every agent, cause or power owes its existence and effect to Him.

As He has no partner in His essence, He has no peer in what He does either. While human beings, as one of these agents and causes, have control over their own actions and can influence their destiny, they are not at all out of God’s will and supervision; otherwise, we should consider them as God’s partners, which will ultimately deny God’s unity in essence.   

4. Unity in Worship

Reaching this stage is when one only worships God and has prepared himself for praying Allah, the One. Based on Islamic doctrine, the act of worship has its own degrees, the clearest of which is the performance of the rites for Allah’s glorification and exaltation.

According to Holy Quran, worship is not limited to the actual performance of prayer but includes any form of spiritual orientation and idealization; the person whose purpose and motivation in life only satisfies his own whim has, in fact, led his spiritual direction toward it and thus worshiped it instead of God. So, the unity in worship is to see Allah as the only one who is fit to be worshiped and obeyed unconditionally and regard Him as the only purpose and direction of one’s conduct.

What Is the Difference between Theoretical and Practical Monotheism?

The first three degrees are all theoretical and a matter of creed - they should be recognized and acknowledged, and require rational thinking- while the fourth one is practical and a necessity for all of our actions.

Moreover, theoretical monotheism gives an insight to perfection while practical monotheism is the actual movement toward it; it is only seeing God’s Oneness and finding knowledge about it while practical monotheism is experiencing and feeling these beliefs tangibly in all walks of life.

In other words, theoretical monotheism provides the basis and foundation of practical monotheism; on the other hand, without bringing those beliefs into action, they would become deficient and imperfect.

Morality includes ethics or moral philosophy, and offers human beings the proper way to spend their lives. These etiquettes suggest the ideals and principles we should aim to achieve, morally commendable actions, and what is considered immoral. Religion may be described as a belief system that elevates people's lives and affirms the presence and ultimate dominance of a spiritual, supernatural, omnipotent divinity that transcends the material realities of day-to-day life. Ethical principles and religious tenets share some ground but do not correspond exactly. Most – but not all – faiths give their adherents ethical instruction. Much, but not all, moral philosophy has its origins or linkages in religious belief.

What do we mean when we refer to religion?

It is challenging to provide a specific definition of "religion" since the term "religion" is susceptible to various interpretations and understandings. On the other hand, religion may be seen as an organized body of ideas and rituals rooted in a common worldview.
This worldview often consists of a consensus on a set of moral principles and an understanding of the meaning of various religious texts. A feeling of connection and identity may also be provided to those who subscribe to a particular religion.
In addition, religion may be understood as the belief in and worship of a superhuman, governing authority, most prominently a personal deity  or gods. This is one comprehensive definition of religion. It is often connected with rites, and it may also entail the reading of holy books. 

What exactly is ethics?

The subject of how a person ought to conduct their life is at the center of the study of ethics, a subfield of philosophy. It seeks to give a framework for ethical decision-making by posing the question, "What is the proper thing to do in this specific situation?" and attempting to provide an answer.
Throughout the course of human history, a great variety of ethical theories have been proposed; nonetheless, no one response is universally accepted to all ethical concerns. Rather, various individuals are likely to arrive at different conclusions depending on the principles and ideals that are most important to them.
The ethical tradition significantly focuses on applying moral principles in everyday life. Instead of providing instruction on how to live a good life in the abstract, ethics aims to offer direction on how to live a decent life in the actual world.

Relation of Ethics to Religion

The history of the connection between religion and ethics may be told via how religion connects to applying practical experience and analytical thought to investigate morality. A significant number of people who participate in religious activities believe that they do not need to comprehend the rationale behind the moral teachings of their specific religion since all they need to know is what God considers morally acceptable. They are not concerned with the rationale behind why some actions are ethically commendable while others are disapproved by society. However, this rejection of critical thinking may impede persons who feel this way from properly knowing all of the particulars of their faith. 
Various perspectives exist on the relationship between religion and ethics, from the notion that religion is the ultimate cornerstone of ethics to the view that ethics is built on humanism principles justified primarily and often only by appealing to reason. These two extremes are often discussed in a manner that leaves little possibility for compromise or pragmatic answers to real-world problems; as the Prophet Muhammad says: " The best of you are those who have the most excellent morals."

The merciful religion of Islam

This presentation of Islam's ethical framework is made in the context of Shariah, the Islamic social and legal order. Whatever promotes one's or society's well-being is ethically desirable in Islam, whereas whatever causes harm is immoral. Islam's ethical framework is the bedrock of a society based on the religion's teachings, deemed divine and unchanging. Regarding personal relationships, business dealings, social gatherings, and public appearances, Muslims are expected to exercise extreme caution following Islamic ethics.

Who exactly is Muhammad?

Muhammad was born in Makkah in 570, while Christianity was still a relatively new religion in Western Europe. His parents had passed away before he was born, leaving him in the care of his revered Quraysh uncle. When he was older, people sought him out as an arbitrator because of his reputation for honesty, kindness, and sincerity. Historians have remarked on his equanimity and quiet demeanor.
Muhammad was a very pious man who had always disapproved of the corruption that pervaded his culture. Occasionally, he would go to the Cave of Hira, located on the slopes of Jabal al-Nur, also known as the "Mountain of Light," not far from Makkah, and meditate there.

Ethics Without Religion

Even if a significant amount of moral philosophy derives from religious belief, the history of secular ethics may be traced back to ancient times. Many philosophers throughout history have belonged to some religious belief system, and acknowledged that it is impossible to live a happy life outside the influence of religion. 

Both ethics and religion presume that the soul is immoral 

Similarly, ethics imposes the need that the soul to be eternal. Although human existence is brief and constrained, the ideal of ethics is vast and unbounded. It is unlikely that it will realize its potential in its limited lifetime. The only way to achieve one's ethical goal is to live an infinite number of lives in succession.
Single life cannot sate the unbridled need of a human being for the comprehension of truth, appreciation of beauty, and fulfillment of their potential. A person's moral behavior throughout life may show the soul's immortality.
In this manner, ethics and religion lead man along the paths of choice and emotion to the ultimate good, beauty, wisdom, and total perfection God is. Both are impressive to one another, and both are necessary for the growth of the human person.
Conclusion

There is a noticeable gap between religious beliefs and moral principles. ethics is grounded in the application of reason. In writing this article, we aimed to clarify the distinction and similarity between these two ideas. 

references

1. https://classroom.synonym.com/the-concept-of-evil-in-islam-12085675.html
2. https://plato.stanford.edu/entries/religion-morality/
3. https://www.shareyouressays.com/knowledge/what-are-the-relationship-between-ethics-and-religion-explained/113112
4. https://www.shareyouressays.com/knowledge/what-are-the-relationship-between-ethics-and-religion-explained/113112