Does the Law Abolish the Promise?

It comes as a shock to some Believers that Paul was in a debate with the Legalistic Turkish Believers in Galatia.

Galatians 3:17, AMP, “This is my Argument: The Law, which began 430 years after the Covenant, concerning the coming Messiah, does not and cannot Annul the Covenant previously established and ratified by God, so as to abolish the PROMISE and make it void.”