Our passage in John 6 contrasts the first and third of the above designated groups. Jesus was explaining to the Jews who rejected Him that their refusal to believe in Him stemmed from their basic refusal to trust in God (in whom they falsely claimed to trust); that those who, in contrast, were now turning and following Him were the true believers in God, the true Jews. That’s what He means when he says that “everyone who listens to and learns from the Father comes to Me.” He isn’t talking about unbelieving Gentiles being regenerated (without even realizing that’s happened) and believing on Christ because they’re elect. He’s talking about Jewish people who were in personal relationship with God believing on Jesus because through their existing faith they recognize His divine origin. This model is not directly applicable to the human race in general today.
For PDF, click here.