Is it possible or common to receive a scholarship from home country for international students?
Some countries (most notably developing countries, such as Vietnam or Pakistan*) have such grants available. I am not convinced that the same will be true for Israel, but it can't hurt to ask. Your best contact point may be the grant office of the university in your home country. They should be able to point you in the right direction.

Note that such grants often have stringent rules about returning back to your home country after finishing your PhD (i.e., they are sometimes constructed as a "loan", which is only forgiven after you have worked back home for a certain number of years). This may not be what you want.



*These countries offer such grants mainly because they themselves lack internationally well-established research universities to train their own scientific next generation (it's essentially a bootstrap problem). The reason why we don't typically see similar grants in developed countries is because they don't need for their young scientists to be trained elsewhere - they can also just study in their home country to similar effect. Given that Israel has a number of strong universities of its own, I doubt that they provide such a mechanism.