The Scriptures are quite clear that those that bless Israel will be blessed and those that curse Israel will be cursed. There are many ways to support Israel both politically and economically. One of my personal preferences is donating to the Zion Orphanage in Jerusalem (it even has it's own Wikipedia page).
NUN: Your Word is a lamp to my feet and a light to my path. (Psalms 119:105)
Serving YHWH thru Service to Others