in order that in Christ Jesus the blessing of Abraham might come to the Gentiles, so that we might receive the promise of the Spirit through faith.
Brothers and sisters, I give an example from daily life: once a person's will has been ratified, no one adds to it or annuls it.
References for Galatians 3:15
Now the promises were made to Abraham and to his offspring; it does not say, "And to offsprings," as of many; but it says, "And to your offspring," that is, to one person, who is Christ.
References for Galatians 3:16
My point is this: the law, which came four hundred thirty years later, does not annul a covenant previously ratified by God, so as to nullify the promise.
For if the inheritance comes from the law, it no longer comes from the promise; but God granted it to Abraham through the promise.
Why then the law? It was added because of transgressions, until the offspring would come to whom the promise had been made; and it was ordained through angels by a mediator.
References for Galatians 3:19
Now a mediator involves more than one party; but God is one.
Is the law then opposed to the promises of God? Certainly not! For if a law had been given that could make alive, then righteousness would indeed come through the law.
But the scripture has imprisoned all things under the power of sin, so that what was promised through faith in Jesus Christ might be given to those who believe.
References for Galatians 3:22
Now before faith came, we were imprisoned and guarded under the law until faith would be revealed.
Therefore the law was our disciplinarian until Christ came, so that we might be justified by faith.