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God’s Family Tree

  • Eli Evans Contributor to Bible Study Magazine
  • Published Apr 03, 2014
God’s Family Tree

Paul has a problem. There’s a church in Rome that he hasn’t been able to visit yet due to more pressing matters (Rom 1:8–15; 15:22–29). He would like to teach them in person, but in the meantime he wants them to be “full of goodness, filled with all knowledge, and able to instruct one another” (15:14)—to find the right answers to big questions on their own, at least until he can get to them.

Trouble is, the Roman believers are mostly Gentiles (non-Jewish people) who are geographically and culturally distant from Jerusalem. They are ignorant of the rich cultural heritage of the Jewish faith, and susceptible to the same Jewish and Gentile integration problems that plagued the church in Galatia (see Gal 3). If these non-Jewish Christians are going to have any chance at getting things right on their own, they’re going to need a systematic introduction to Jewish history and their place in it.

Paul’s letter to the Romans is more than just a set of philosophical propositions about the nature of God or the work of Christ. It’s a crash course in biblical history for those wishing to transition from the worldly and fleshly culture of the “old man” (Rom 6:6) into their new role as God’s people (8:15, 23). Paul hits all the highlights of Israel’s history—from creation and the fall, to the Abrahamic covenant (Gen 12, 15, and 18; Rom 4), to the exodus (Exod 1–2; 14; Rom 5–6), to the giving of the Mosaic Law. He carefully relates each episode to the situation faced by Roman believers.

Paul’s focus is integrating Gentile believers into a tradition inaugurated by Jews (while not converting to Judaism in the process). In chapter 11, Paul uses a powerful metaphor to illustrate how Gentile believers are integrated into the body of Christ. They are “wild shoots” who are “grafted” onto the trunk of true faith (Rom 11:17–24). Jews who have rejected Christ are “natural branches” who have been “broken off” to make room.

Grafting branches from one tree onto the rootstock of another was common practice at the time:

The normal process was to take a shoot from an olive tree that bears good fruit though it does not grow vigorously and graft it onto a wild olive stock, whose fruit is poor but which grows strongly. The result is a tree with vigorous growth which bears good olives. Paul, however, talks of the reverse process, of grafting a wild olive onto the stock of a good olive and later even of grafting back some of the good olive branches that have been cut out.

The “root” of the Jewish faith sustains and nurtures Gentile “branches,” which would otherwise not bear good fruit. New believers should not disdain their Jewish forbearers, since “it is not you who support the root, but the root that supports you” (11:18). The Gentiles are inheriting Jewish customs, practices and (most importantly) promises—not the other way around.

As a result, Gentile Christians ought to draw strength from their new heritage and bear good fruit, while being respectful of any “natural” branches that remain. If God was willing to go “contrary to nature” to prune out “cultivated” but unfaithful Jews, He would be more than willing to prune out any unfaithful Gentiles (11:24).

Roman believers were already spiritual descendants of Abraham by virtue of their faith (4:9–12), but they lacked the cultural heritage that Abraham’s earthly descendants enjoyed (3:1–2; 11:1–2). According to Paul, God’s solution was to fuse both sets of branches—“the Jew first, and also the Greek” (1:16; 2:9)—into one tree, nourished by the same roots of faith that stretch back to the beginning. Gentile and Jewish Christians share a common history and a common destiny as the true “sons of the living God” (9:24–26). The biblical story is the story of all believers, to learn from and to live up to.

Biblical references are from the English Standard Version (ESV).

BSMArticle courtesy of Bible Study Magazine published by Logos Bible Software. Each issue of Bible Study Magazine provides tools and methods for Bible study as well as insights from people like John Piper, Beth Moore, Mark Driscoll, Kay Arthur, Randy Alcorn, John MacArthur, Barry Black, and more. More information is available at Originally published in print: Copyright Bible Study Magazine (Sep–Oct 2011): pg. 47.