This may seem like a stupid question but to you, how many Israels are there?
If you were raised in a Christian household, iam sure you will remember this.
We all sang this song in Sunday school and our toddler/pre-teen selves meant what we were singing, and i still believe that iam Abraham's kid. Do you? If not, as a believer, who are you?
Because in SS, we were taught that he is the father of all believers: Gal 3:6
"just as Abraham “believed God, and it was accounted to him for righteousness.” Therefore know that only those who are of faith are sons of Abraham." (<-this, in the face of replacement theology being called anti-semitic in origin)
Now, as far as iam aware, scripture never says anything about 2 Israels. There's just one. So, using the verse you quoted, which Israel are you called to bless? If it is the state in the MiddleEast, where does that leave you?
Anticipating your answer, if you say you are a gentile (natural descent) but also have Abraham as a spiritual father thus making you spiritual Israel, which lineage, in God's eyes, takes precedence over the other, natural or spiritual? And there can't be two israels because you'd have to biblically support the argument.
To add, most often, that verse in Genesis is used to explain the decline of the Spanish empire because of the Inquistion and yet it (the argument) always fails (and is never cited) when it comes to Germany (Europe's largest economy). How is it that Germany made it out okay after "cursing" Jews but Spain didn't?