Judeo-Christian God

[RFCA]

As far as I know, only the Bible legitimizes the belief in the Judeo-Christian God (Yahweh) over beliefs in other gods.
But in the absence of the Bible -- say the time when our ancestors still lived like the Masai's or Pygmies...there was a strong tendency for people to worship the sun, or a mountain or great animals or an unseen spirit. How can we really say that they are wrong in doing so? How can they possibly realize the wrongness of such?

In Acts 17:23 (New King James Version) "for as I was passing through and considering the objects of your worship, I even found an altar with this inscription: TO THE UNKNOWN GOD. Therefore, the One whom you worship without knowing, Him I proclaim to you:", Paul sort of have equated the unknown God to the Judeo-Christian God he is preaching.

In Christ,
Richard

[seer]

Romans 1

18The wrath of God is being revealed from heaven against all the godlessness and wickedness of men who suppress the truth by their wickedness, 19 since what may be known about God is plain to them, because God has made it plain to them. 20For since the creation of the world God's invisible qualities—his eternal power and divine nature—have been clearly seen, being understood from what has been made, so that men are without excuse.
21For although they knew God, they neither glorified him as God nor gave thanks to him, but their thinking became futile and their foolish hearts were darkened. 22Although they claimed to be wise, they became fools 23and exchanged the glory of the immortal God for images made to look like mortal man and birds and animals and reptiles.

All men are without excuse...