Does all our different religions stem from one particular religion? If so, which one?
The Three Major Religions look at Abraham as the father of them all....

Let all bitterness, and wrath, and anger, and clamour, and evil speaking, be put away from you, with all malice:And be ye kind one to another, tenderhearted, forgiving one another, even as Elohim for Yahushua the Messiah's sake hath forgiven you. Ephesians 4:31-32