ACV(i)
15 Brothers (I speak according to a man), in the same way of a man, no man annuls or adds to a contract that has been ratified.
16 Now the promises were spoken to Abraham and to his seed. He does not say, And to the seeds, as of many, but as of one, And to thy seed, who is Christ.
17 And I say this, a covenant previously confirmed by God in Christ, the law, which happened four hundred and thirty years after, does not annul in order to make the promise useless.
18 For if the inheritance is from law, it is no longer from promise. But God has given it to Abraham through promise.
19 Why then the law? It was added on account of transgressions, until the seed would come to whom it was promised, which was arranged through agents in the hand of a mediator.
20 Now a mediator is not of one, but God is one.
21 Is the law therefore against the promises of God? May it not happen! For if a law was given that could make alive, truly righteousness would be from law.