You are right, what Israel is doing will come back to bite them. But calling the Israeli side "genocide" when Hamas is doing it with their human shields is wrong . It happened over and over in the Old Testament. God used one pagan empire after another to discipline them, some of them genocidal like the Amalekites.

However, the land will always belong to Israel, and

"Nevertheless, all who devour you will be devoured, and all your adversaries—every one of them— will go off into exile. Those who plundered you will be plundered, and all who raided you will be raided." Jeremiah 30:16