Romans 4:13
For the promise, that he should be the heir of the world, was not to Abraham, or to his seed, through the law, but through the righteousness of faith.
Torrey's Topical Textbook—AKJV

Galatians 3:18
For if the inheritance be of the law, it is no more of promise: but God gave it to Abraham by promise.
Torrey's Topical Textbook—AKJV