Galatians 3:18

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.

So, then, we know it is by promise, and God must keep his promise, and we must believe it. It must be true; and if we do believe it, we shall prove it to be true, and it will be fulfilled in every jot and tittle to every believing soul.