
Monotheism means belief in a single God. There are many monotheistic religions. These include Islam, Judaisms, Zoroastrianism, Hinduism, and Zoroastrianism. Each has its own set of beliefs and practices. Let's take a look at the differences.
Islam
Islam is a monotheistic religion, which emphasizes God’s oneness. Islam believes that God is the Creator alone and that worship should be given to Him. This concept is highlighted throughout the Qur'an. The majority of the verses in the Qur'an emphasize the Oneness of Allah.
Christianity, Judaism & Islam are three of the most important monotheistic religious traditions. These three traditions trace their origins to Abraham. Abraham, who was the father of the Abrahamic religions, was asked to sacrifice his only son, but God intervened to save him. He then offered Abraham to sacrifice a ram. The promise of the Messiah is the center of Jewish hope in the Bible.

Islam views worship as a fundamental part of Islam. Worship is more than mere rituals and prayers. Every person must worship God. These activities may include charitable donations, seeking knowledge, or being a force of good in the world.
Judaism
Judaism can be described as a monotheistic, ethnic religion that belongs to the Abrahamic family. Its roots are found in the Bronze Age in Middle East. It is based on Jewish beliefs and history. It is one the most well-practiced religions worldwide, having been around for over two thousand year.
Jewish people believe God created the universe and that all men are made in God’s image. Judaism holds that God will judge us at our final days. It is different than other religions, as it has many traditions, holidays and rules. There are 5 million Jews in the United States today. There are many synagogues all over the country. Jewish people believe that helping other people is a way to make the world a better place.
The Torah describes polytheism in the Torah as a false religion and wicked. In Deuteronomy 32:16-17, God accuses the Israelites of worshiping false gods. Modern scholarship suggests polytheism has its roots within monotheism, which is a far more complex question than many believe.

Zoroastrianism
While Zoroastrianism is one of the smallest religions in the world, it still has a profound impact on the worldview of its followers. The religion's teachings include a concept of hell and heaven, the Judgment Day, and free will. It also teaches about angels as well as demons.
Zoroastrians believe human souls can achieve perfection in this life, and then meditate on their actions in the next. A good balance of actions and deeds will lead to heaven, while an unhealthy balance will bring you to your death. Zoroastrianism is a religion that encourages moral and good behavior.
Zoroastrianism can be considered the oldest and most ancient religion in the world. Its adherents were a wealthy minority who believed honesty, respect, education, and justice. Eventually, they fled to India, where they are known today as the Parsis.