Galatians 3:15-18 - The Promise To Abraham And His Descendant

¹⁵ Brothers, I will use an illustration from the way people deal with each other: Even though an agreement is made between people, once it is finally settled, no one can cancel it or include additional provisions to it. ¹⁶ Now [specific] promises were made to Abraham and to his seed [i.e., descendants]. [God] did not say "seeds" [plural] as though He were referring to many persons but "seed" [singular] showing that He meant one [descendant]; [Gen. 13:15 says] "And to your seed," referring to Christ. ¹⁷ Here is what I am saying: The Agreement originally made by God [with Abraham], with its attending promises, was not canceled when the law of Moses was given some four hundred and thirty years later. ¹⁸ For if the inheritance [of never ending life] can be obtained by [obeying the requirements of] the law of Moses, it would not come from the promise [of God]; but God provided [this inheritance] for Abraham according to [His] promise.