Galatians 3 lines 17, 18, 19

THE EPISTLE OF PAUL THE APOSTLEĀ TO THEĀ GALATIANS.
CHAPTER 3:

16 Now to Abraham and his seed were the
promises made. He saith not, And to
seeds, as of many; but as of one, And to
thy seed, which is Christ.
17 And this I say, that the covenant, that
was confirmed before of God in Christ,
the law, which was four hundred and
thirty years after, cannot disannul, that it
should make the promise of none effect.
18 For if the inheritance be of the law, it is
no more of promise: but God gave it to
Abraham by promise.
19 Wherefore then serveth the law? It was
added because of transgressions, till the
seed should come to whom the promise
was made; and it was ordained by angels
in the hand of a mediator.