Why did God say you Bless Israel i will bless you, you curse Israel and i will curse you

Many people are under a curse because of what they are taught, that Gaza belongs to palistinian people, not according to the bible, but even if Palastine owns Gaza it still does not negate the fact if you curse Israel i will curse you. So be aware if you talk bad about Israel God is Listening, this could explain why you may die prematurly, or bad things keep happening to you.