And this I say, that the law, which was four hundred and thirty years later, cannot annul the covenant that was confirmed before by God in Christ, that it should make the promise of no effect. (Galatians 3:17)
God made a covenant with man.
No one is to invalidate or add anything to it.
God made the covenant with Abraham.
The promise was confirmed in his Seed, who is Christ.
The law was introduced 430 years later.
It could not abolish the covenant that was confirmed before by God in Christ.
The law can never make the promise of no effect.
God bless His people through His Son alone.
The promise of salvation still stands.
It is always by the grace of God the Father through His Son.
It is never through the works of the law.
God had made a covenant with Abraham.
Abraham would become a father of many nations.
God had promised to bless him and his Seed.
It is through Christ alone that all God's people will be blessed.
It is in Christ alone.