Murdock(i)
15 My brethren, I speak as among men; a man's covenant which is confirmed, no one setteth aside, or changeth any thing in it.
16 Now to Abraham was the promise made, and to his seed. And it said to him, not, to thy seeds, as being many; but to thy seed, as being one, which is the Messiah.
17 And this I say: That the covenant which was previously confirmed by God in the Messiah, the law which was four hundred and thirty years after, cannot set it aside, and nullify the promise.
18 And if the inheritance were by the law, it would not be by promise: but God gave it to Abraham by promise.
19 What then is the law? It was added on account of transgression, until that seed should come, to whom belonged the promise: and the law was given by angels through a mediator.