Paul is letting people in on a secret, which was hidden for ages and generations; and Paul himself is to be the one to take this news around the world. Paul goes on to talk about the secret, that Jews and Gentiles stand on the same ground before God because of Christ. The dividing wall has been destroyed. They get the same offer, same help, same promises in Christ Jesus. God has called us, like Paul, to be ambassadors and representatives, inviting others to be reconciled to God. We are servants and stewards of God's grace.
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