Dear Teresa,
Good question.
Actually, God didn't exactly 'choose a group of people in the world'. He created a people, beginning with Abraham, to communicate with. There's a difference.
One could say it was God's positive will to reveal Himself to all mankind by creating a people out of Abraham, then Isaac and Jacob, and then what was to become the whole people of Israel - in order that His truth and love be spread across the globe. He wanted the whole world to know Him, and to prepare for the incarnation of His divine Son to save the world. A combination of Israel being unfaithful and the surrounding pagans rejecting Israel's God stalled the process. But when Christ came to the earth, it was clear that He came to save not only the children of Abraham, but the children of Adam. Christ's self-sacrifice won for humanity the Holy Spirit to 'kick-start' the process, beginning on Pentecost in Acts 2.
So, the bottom line is that God came to save all humanity from the eternal consequences of their sins, first through the people of Israel He formed through Abraham, and then through Christ and His Church led by the Spirit.
Peace,
Paul |