Before the resurrection of Jesus Christ, man had lived in sin and bondage ever since Adam committed the original sin. For a few hundred years man lived without a tutor or guardian, the the law was given to teach us until the great mystery of the Good News was revealed.
25 Now to him who is able to establish you in accordance with my gospel, the message I proclaim about Jesus Christ, in keeping with the revelation of the mystery hidden for long ages past, 26 but now revealed and made known through the prophetic writings by the command of the eternal God, so that all the Gentiles might come to the obedience that comes from faith— 27 to the only wise God be glory forever through Jesus Christ! Amen.–Romans 16:25-27 (NIV)
We are all saved by “grace through faith” and we are all one body, the body of Christ and are therefore the seed of Abraham. If we are the seed of Abraham, then we are heirs and members of the “heir force”. And one glorious day, we will all fly home to be with our Lord and Savior for eternity!