3 Tutorials that teach Monotheism
Take your pick:



This lesson discusses and broadly defines monotheism within the context of the three major "Western" faith of Judaism, Christianity, and Islam.

See More
Approaches to Studying Religions

Believe it!
Our Approaches to Studying Religion Course is only $329.

Sophia's online courses help save you money, while earning credits that are eligible for transfer to over 2,000 colleges and universities.*


Video Transcription

Download PDF

[MUSIC PLAYING] Welcome to this tutorial on monotheism. Monotheism comes from mono, which means one, and theos, which means God. So monotheism is the belief that only one god exists.

The three Abrahamic religions are all various different versions of monotheism-- Judaism, Islam, and Christianity. In Judaism, God can be known by different names but God is still considered to be numerically one. And next, in Islam, there's only one main name for God, although God can have different titles. Normally, in Islam, God will be called Allah.

And then there's Christianity. Christianity is sort of the odd man out in this scenario. Christianity is, of course, a trinitarian religion. So one God in three persons. And for that reason, some Jews and Muslims do not consider Christianity to be a monotheistic religion.

They take issue with the doctrine of the Trinity. And they think that it is not monotheistic enough. So three religions, three different takes on God, all considered to be monotheistic in one way or another.

Monotheism-- from the roots mono, which means one, and theos, which means God-- is the belief that only one God exists. Judaism is an example of a monotheistic faith in which God is known by many names but is considered singular. In Islam, there might be many titles for God but only one name for God, Allah.

This is different from monotheism in Christianity where God is considered to have three persons or three faces. For this reason, many Muslims and Jews don't believe that Christianity is actually monotheistic.

Notes on "Monotheism"


Terms to Know              

The belief that only one god exists.