God promised to protect the nation of Israel. God promised to bless those nations who bless Israel. But anyone who despises, demeans, or seeks to harm Israel will be cursed by God, Himself.
Genesis
They were the depository of the divine promises up until the arrival of Jesus Christ.
Obviously, though, no longer.
Cum Supremae (1928)
Decree on the Abolishment of the Association commonly called “Amici Israel”