What does Romans 11:15 mean?
Paul answers a question in this verse that he posed in verse 12, as well. There, he wrote that Israel's full inclusion in faith in Christ will mean a great deal for the Gentiles. It will be even greater than the riches of God's glory, received through faith in Christ, made available when Israel rejected Christ.Now he asks a similar question. If Israel's rejection, by God and for a certain period, led to reconciliation with God for the rest of the world, what will be the benefit to the rest of the world when the fullness of Israelites is eventually accepted by God through faith in Christ? Paul writes that it will mean life from the dead.
Paul seems to be saying that God's eventual acceptance of Israel is somehow connected to the idea of resurrection, perhaps the future resurrection of the bodies of all who are in Christ at some future moment. The exact meaning of "life from the dead," however, is debated by Bible scholars.