Then the angel said: Now do you understand why I have come? Soon I must leave to fight against the guardian angel of Persia. Then after I have defeated him, the guardian angel of Greece will attack me.
What I am going to tell you is certain to happen. Four kings will rule Persia, one after the other, but the fourth one will become much richer than the others. In fact, his wealth will make him so powerful that he will turn everyone against the kingdom of Greece.
After you are gone, another kingdom will rule, but it won't be as strong. Then it will be followed by a kingdom of bronze that will rule the whole world.