What did God prepare Israel to do for the Gentiles?
God was dealing with His nation Israel, preparing them for the time when they could be used to bring a Gentile to a knowledge of their God. This was prophetic; Israel was to be the vehicle through whom Gentiles would come to know God.
Les explains that God was dealing with His nation Israel, preparing them for the time when they could be used to bring a Gentile to a knowledge of their God, and he notes this was all prophecy. After Israel rejected that, the Book of Acts continues the same premise: Peter strictly appeals to the Jew, and the program is primarily Jew only, not exclusively, with exceptions. Israel continues to reject, then comes a body of truth Paul refers to as the mysteries; when that is complete, the final seven years and the Second Coming follow.