Jesus death until Pentecost

A few days ago I asked, how people were saved from the time Jesus died and Pentecost.   The Bible tells us the Old Law was fulfilled when Jesus died and was no longer in operation. The Bible also tells us Jesus' church was established on Pentecost. We can hardly deny that defines a 50 day period when people could look to neither.   My question was based on false premises.   Premise 1: the Bible is a history of all mankind.   Premise 2: the only way to have an opportunity to be saved was to be a descendant of Abraham and Sarah.   When God selected Abraham and Sarah he selected the family through whom the Messiah would come he did not doom the rest of the world to Hell. Don't forget Ishmael was as much a child of Abraham as was Isaac and God blessed Ishmael and his mother.   God worked with Abraham's and Sarah's descendants and over the generations narrowed his selection of the families through whom Messiah would come. The Bible does not support the idea that not being selected doomed one to Hell. God continued to narrow his selection until when the fullness of time had come, He sent forth his Son, born of woman, born under the law.   At this point we had three groups: descendants of Abraham who were selected, descendants of Abraham not selected and those not descendants of Abraham. Paul told the church in Rome about Gentiles, who do not have the law, by nature do what the law requires, they are a law to themselves, even though they do not have the law. The term gentiles would include Abraham's descendants via Hagar as well as those not descended from Abraham, would they not? And just maybe until Cornelius, gentiles still had a parallel way to please God. Surely when Jesus sent the Apostles with the instructions, "Go nowhere among the Gentiles and enter no town of the Samaritans, but go rather to the lost sheep of the house of Israel" he was not dooming the Gentiles living at that time to Hell.   So, no gap just another, not often considered, way to please God, temporarily of course until Pentecost.