Galatians 3:17

17 This is what I mean: the law, which came four hundred and thirty years afterward, does not annul a covenant previously ratified by God, so as to make the promise void.

Galatians 3:17 In-Context

15 To give a human example, brethren: no one annuls even a man's will, or adds to it, once it has been ratified.
16 Now the promises were made to Abraham and to his offspring. It does not say, "And to offsprings," referring to many; but, referring to one, "And to your offspring," which is Christ.
17 This is what I mean: the law, which came four hundred and thirty years afterward, does not annul a covenant previously ratified by God, so as to make the promise void.
18 For if the inheritance is by the law, it is no longer by promise; but God gave it to Abraham by a promise.
19 Why then the law? It was added because of transgressions, till the offspring should come to whom the promise had been made; and it was ordained by angels through an intermediary.
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.