Scripture is a living witness to that covenant family, full of the colorful stories of faith and failure and quirky personalities that characterize God's people.
Isaiah’s vision of a new, ever-expanding family of God is not a prediction but a narration –he is describing what is already underway as the message of salvation spreads wider and wider.
Christ did not remain in the tomb, but rose and lives.
Trusting and believing this assurance from Isaiah may challenge us today just as it would have challenged those who had gotten accustomed to life in exile. That’s why it’s helpful to envision ourselves in the long, winding lineage of God’s people, seeing the connections to the past and the way God has led others before us.