Why do believing Gentiles enjoy and experience grace-age promises?
Believing Gentiles enjoy and experience grace-age promises because they are of the seed of Abraham by virtue of the spiritual promises God made to him, not because they become Jewish blood. Paul teaches this in Galatians, showing Gentiles share Abraham’s spiritual promises and therefore participate in them.
Les explains that the promise to Abraham is twofold. First, God brought Abraham out under the nighttime sky, showed him the stars, and said, “So shall thy seed be.” This pictures a heavenly seed. Second, Genesis 13:16 speaks of Abraham’s seed as the dust of the earth, which is earthly. Les points out that Paul gets his teaching in Galatians from this, showing that Gentiles are of the seed of Abraham—not by becoming Jewish blood, but by virtue of the spiritual promises made to Abraham. Therefore believing Gentiles now enjoy and experience these grace-age promises.