When God created the World, it was unitary, much like what Jesus prayed for in John 17. But with that unfortunate(?) digression from 'God's will', polarity came into existence. The consequence was the miry clay in which we live, as to the Bible, a long trail of God's promises and Man's disobedience; the consequence of that was the inevitable punishment, especially War and Death (of thousands).
One of Man's sins led to the confusion of tongues, so nobody understood what anybody else was saying.
In the course of time God sent his Son, just like the man who owned the Vineyard did, to suffer and die for our sake. And on the day of Pentecost the curse of duality was removed and people understood one another, an approach at least to the fulfilment of the prayer that we might be one.
Unity -- Polarity -- Forgiveness -- Redemption: God's plan in the beginning for us all. Hallelujah.