In the dispute between yourself and friend of which you speak, you are altogether right and he is entirely wrong. In the last analysis it is a disputation as to whether or not the Jewish-Christian bible contains an infallible revelation from an omniscient being, a triune god, Father, Son and Spirit. It does not.
As an objectivity there is no such divinity. He is a subjectivity existing in the imagination of orthodox Christians. You do not agree with me in this, but every day of thought and study deepens the conviction that it is true. None among the gods of the supernaturalistic interpretations of religion are objectivities. The lesser ones are generally ghosts of dead men, and the greater ones are as generally versions of the sun-myth.
The one god of the Jews and the triune god of the Christians, if taken seriously, are superstitions; and the bible revelations of their willings and records of their doings, if taken literally, are lies.
Both the Old and New Testaments are utterly worthless as history. The twelve patriarchs of the Jewish God, Jehovah, are not historical personages, but myths, and this is true of the twelve apostles of the Christian God, Jesus.
Yes, the Old Testament is the Jewish version of the immemorial and universal sun-myth, rewritten several times for the purpose, not of telling any truth, but of imposing the fiction that Jehovah and his people constitute the greatest procession that ever came down the pike of supernaturalism. The New Testament is the Christian version of the same myth, only with the view of showing that Jehovah and the Jews were not, but Jesus and Christians are, this procession.
In itself, the sun-myth, as symbolism, is not only poetically beautiful, but also scientifically true; yet, as literalism, it is in the case of the ignorant, superstition, and in the case of the educated, self-deception.
The sun is, in a very literal and real sense, the creator-god in whom this world lives, moves and has its being; and he is the saviour-god who was born of a virgin nebula, and every winter descends into hell and rises from the dead (the southern solstice) by a new birth and ascends into heaven to be seated at the right hand of the father (the sky) at the northern solstice, and finally he is the illuminator god who lighteth every man that cometh into the world.
And the apostles who preached the gospel of the redemption of the world are the twelve signs of the zodiac through which the sun apparently passes in its annual ascension to the summer solstice and descension to the winter solstice.
Nor is this all: "the Lamb of God that taketh away the sins of the world" is the sign of the zodiac, Aries (sheep, ram) through which the sun passes towards the end of March, when all the saviour-gods annually died and rose again. The rising symbolizes the return of the sun towards the northern solstice from the southern one, upon which return seed-time and harvest are dependent, without which the world would perish, not indeed by sin but by starvation.
Jehovah is the sun-myth rewritten to fit in with the ideals and hopes of the owning, master class of the Jews.