I think “heart of the Land” being the ground makes more sense, especially when we read Jonah’s prayer in the abyss. The answer might be the Hebrew reckoning of time, which doesn’t satisfy, but I’m not a Hebrew.

See http://www.bullartistry.com.au/wp/2012/09/08/what-lies-beneath/

Yes, we are dealing with a fractal, so the Scriptures have a great deal of influence on the Gentiles over time. This is, in fact, why Gentile nations are held accountable for judgment in the prophets: they were not ignorant of the truth. God was already extending his tent.

Leithart is brilliant on this: http://www.bullartistry.com.au/wp/2010/01/04/did-plato-read-moses/

The problem with the “circumcision = parenting” assumption is that it is rubbish. Circumcision was sacrificial. Israel as a nation was to be a living sacrifice. Parenting was simply one facet of keeping the Law, and the delegation of that authority came from the Covenant oath at Sinai, not from circumcision.

Thanks again for reading, and for taking the time to comment.

Getting back on topic…
Regarding the connection between baptism and child-rearing seen especially in Wilson’s understanding of the rite, I suppose you respond with the fact that even in Solomon’s time, God-fearing gentiles outside of the covenant could still find the book of Proverbs edifying and use it to raise their kids. If the Queen of Sheba can benefit from Solomon’s wisdom, then so can everyone else!