The Promise
Let’s Make an Example in Everyday Life
In Galatians 3:15–18 Paul uses a similar legal document to illustrate the nature of the Abrahamic covenant: Brothers, let me take an example from everyday life. Just as no one can set aside or add to a human covenant that has been duly established, so it is in this case (v. 15). This “irrevocable trust agreement” that God made with Abraham is described in terms of the beneficiary of the trust (v. 16), the date of the trust (v. 17) and the condition for inheritance (v. 18). Our study of these terms of the Abrahamic covenant will enable us to appreciate the gracious, unconditional nature of God’s love for us.
The apostle Paul is still expounding ‘the truth of the gospel’, namely that salvation is a free gift of God, received through faith in Christ crucified, irrespective of any human merit. He is emphasizing this, because the Judaizers could not accept the principle of sola fides, ‘faith alone’.
This verse is notoriously difficult to interpret. Regardless of the precise meaning, Paul seems to be emphasizing unity. In Gal 3:16, he contrasted the many with the one to show that Christ fulfills the promise given to Abraham. Similarly here, the law mediated by Moses leads to divisions (i.e., Jews and Gentiles), rather than to one family of faith worshiping the one true God. See v. 28 and note.