Galatians 3:17
What I mean is this: The law, introduced 430 years later, does not set aside the covenant previously established by God and thus do away with the promise. — the 430-year interval (from Abraham to Moses/law) establishes the law's temporal posteriority; a covenant ('diathēkē') established earlier cannot be negated ('akyrō' — annul, void) by a later instrument like the law.