Who were the Gentiles God dealt with during the Old Testament Jew-only period?
During the Old Testament Jew-only period, God's dealings were predominantly with Israel, but the record notes Gentile exceptions: Jonah went to the city of Nineveh, Naaman the Syrian general, Rahab the harlot, and Ruth the Moabitess. These exceptions show God reached Gentiles while Israel remained the primary focus.
Les explains that from Genesis chapter 12, the call of Abram, all the way up until well into the book of Acts, the dealings were predominantly Jew only. He points out exceptions: Jonah went to the city of Nineveh, Naaman the Syrian general, Rahab the harlot, and Ruth the Moabitess were Gentile exceptions. For the most part, however, God was dealing with Jew only. Later, well into Acts, Paul is called aside and God sends him far hence to the Gentiles, going first to the Jew and then turning to the Gentiles when they rejected him.