All three faiths, Christianity, Judaism and Islam hinge on Abraham.
This is in the religious books.
Yes, indeed they fall that way.
I think we have a semantic difference that is creating confusion. Yes, all three religions point to Abraham for the justification of their faith. Jesus said to the Pharisees,
Joh_8:37 I know that ye are Abraham's seed; but ye seek to kill me,
because my word hath no place in you.
Joh_8:39
They answered and said unto him, Abraham is our father. Jesus saith unto them,
If ye were Abraham's children, ye would do the works of Abraham.
Joh_8:40 But now ye seek to kill me, a man that hath told you the truth, which I have heard of God: this did not Abraham.
Mat_3:9
And think not to say within yourselves, We have Abraham to our father: for I say unto you, that God is able of these stones to raise up children unto Abraham.
Joh_8:56
Your father Abraham rejoiced to see my day: and he saw it, and was glad.
Judaism rejects Jesus not only as the Messiah, but persecutes any Jew that embraces Christ. Islam calls Jesus a prophet but rejects Him as God.
Paul said,
Gal_3:7 Know ye therefore that
they which are of faith, the same are the children of Abraham.
Gal_3:16 Now to
Abraham and his seed were the promises made. He saith not, And to seeds, as of many;
but as of one, And to thy seed, which is Christ.
Gal_3:29
And if ye be Christ's, then are ye Abraham's seed, and heirs according to the promise.
To say that there are three great Abrahamic faiths is a mantra often repeated. And, as I said, it is a difference in semantics. What is meant is that three religions have come out of the descendants of Abraham. Of course as a Christian, I have never been a genetic descendant of Abraham, but I am a spiritual descendant. And in that sense, of which Jesus and Paul meant, neither the Jew who remains in Judaism nor the Muslim in Islam are spiritual descendants, for they do not have the faith of the man Abraham who believed in Jesus (John 8:56) before Jesus incarnated. Only Christians are spiritual descendants of Abraham.