Final answer:
The concept of becoming children of God in Christian theology is universal, extending beyond Jewish heritage and is available to all through faith in Jesus' teachings. St. Paul's influence helped spread Christianity as a religion open to everyone, emphasizing spiritual adoption by God.
Step-by-step explanation:
The right to become children of God is a concept rooted in Christian theology, which suggests that all people, not just Jews, have the opportunity to accept the teachings of Jesus and become children of God through faith and belief. Historically, this was a significant development as it expanded the scope of Christianity beyond its Jewish roots to become a universal religion. The influence of St. Paul played a key role in spreading this idea that salvation was available to all, not limited by ethnicity or background.
Christianity teaches that through Jesus' sacrifice, humans are offered the chance for eternal life in heaven, becoming spiritual children of God. The spread of this message of inclusion was revolutionary in that it opened the doors for people of every nationality and color to become part of the Christian faith.
In essence, the concept of being children of God is about spiritual adoption, where individuals from all walks of life can forge a relationship with the divine, irrespective of their physical origins or societal status.