The author may be intentionally
drawing the story of the founding of Babel into the larger scheme
at work throughout the book. It is a scheme that contrasts God’s
way of blessing with man’s own attempt to find the good, similar to
human secularism.
When man goes “east,” he tended to
leave the land of God’s blessing and went to a land where his
hopes on his own turned to ruin, i.e. Tower of Babel.