"Much of our Christian emphasis on foreign policy in the Middle East today is based on the promise that God made to Abraham in Genesis 12:3, "And I will bless them that bless thee, and curse him that curseth thee: and in thee shall all families of the earth be blessed."
The first half of this verse is a promise that God made to just one person, Abraham. The original Hebrew is in the second person singular, meaning that God is speaking only to Abraham. The King James Version correctly reflects this grammatical construction, since "thee" is singular, referring only to one person, whereas "ye" would refer to multiple persons.
Matthew Henry’s commentary states of Genesis 12:3a that "This made it a kind of league, offensive and defensive, between God and Abram."
Of the second half of the verse, Matthew Henry says, This was the promise that crowned all the rest; for it points to the Messiah, in whom ‘all the promises are yea and amen.’ Note, (1), Jesus Christ is the great blessing of the world, the greatest that ever the world blessed with."
Recently Genesis 12:3 has been spiritualized by Christian Zionist preachers, who say that this verse applies not just to Abraham, but also to Abraham’s descendants, specifically to the modern state of Israel founded in 1948. Supposedly, it means that evangelical Christians as individuals, and America as a nation, are bound to provide unquestioning support, financial and otherwise, to the state of Israel. It is said that if America fails to back up Israel in every way possible, financially, militarily and otherwise, then God will be through with America and will have us nuked.
When it is pointed out that the various Arabs nations, including Palestine, are also descended from Abraham, the Christian Zionists say that the promise of Genesis 12"3 applies only to the descendants of Isaac. (Of course, there is no mention of Isaac in Genesis 12:3. They often misquote the verse, saying it refers to "blessing Israel," but Israel is not mentioned in the verse, either).
Zionists say, based on their non-literal, speculative, spiritualized interpretation of Genesis 12:3, that we are to give total, unquestioned support to some of Abraham’s children, while others of Abraham’s children are to be hated, persecuted, ethnically cleansed, bombed back into the Stone Age, maybe even nuked..."