I don't bring assumptions to scripture when I am trying to understand it. I let is speak for itself, pray for understanding and look to other Christians for biblical based input.
Well grok this: I don't have a God given dominion over America to hand it over to illegal aliens, and neither do you. Disobedience of this principle is resisting the revealed will of God. Nothing is stopping you from going to Mexico and being as generous as you wish, or from sending your money to Mexico if that's how you want to do it.
Moses was the only lawgiver...
Part IV. Of the Kingdom of Darkness
Chap. xlv. Of Demonology and other Relics of the Religion of the Gentiles.[10] ...For God being King of the Jews, and His lieutenant being first Moses, and afterward the high priest, if the people had been permitted to worship and pray to images (which are representations of their own fancies), they had had no further dependence on the true God, of whom there can be no similitude; nor on His prime ministers, Moses and the high priests; but every man had governed himself according to his own appetite, to the utter eversion of the Commonwealth, and their own destruction for want of union. And therefore the first law of God was: they should not take for gods, alienos deos, that is, the gods of other nations, but that only true God, who vouchsafed to commune with Moses, and by him to give them laws and directions for their peace, and for their salvation from their enemies.
http://oregonstate.edu/instruct/phl302/texts/hobbes/leviathan-contents.html
Luke 16:31. “If they do not listen to Moses and the Prophets, they will not be convinced even if someone rises from the dead.”