They all believe in the God of Abraham. They simply give him different names. Jews and Muslims are descendants of Abraham. Christianity began as a sect of Judaism. Jews and Muslims are are like gigantic families to simply say. They are religion one must truly be born into. Christianity requires no special lineage, one just must be "Born Again" in Jesus Christ a key difference between the three.
Belief in one God and that only He is to be worshiped.
Belief in all of His creation (us, angels, devils/jinn, heaven, hell, etc.)
Belief in His Messnegers (Abraham, Moses, Noah, etc.)
Belief in His holy books (Torah, Gospel, Scrolls, Quran, etc.)
Belief in the Day of Judgement.
Also, that to love for the sake of your God is the greatest deed.
Major common beliefs in Judaism, Christianity, and Islam?
