Romans 4:13, 16-18, 22
The promise to Abraham and his descendants, that they should inherit the world, did not come through the law but through the righteousness of faith.
That is why it depends on faith, in order that the promise may rest on grace and be guaranteed to all his descendants — not only to the adherents of the law but also to those who share the faith of Abraham, for he is the father of us all, as it is written, “I have made you the father of many nations” — in the presence of the God in whom he believed, who gives life to the dead and calls into existence the things that do not exist.
In hope he believed against hope, that he should become the father of many nations; as he had been told, “So shall your descendants be.”
That is why his faith was “reckoned to him as righteousness.”
The Promise: “So is my word that goes out from my mouth: It will not return to me empty, but will accomplish what I desire and achieve the purpose for which I sent it.” – Isaiah 55:11.
Faith: Believing the promise in spite of context.
Hope: Keeping the promise always in view.
Righteousness: Acting on love for God and neighbor.
The Law: “Give, and it will be given to you. A good measure, pressed down, shaken together and running over, will be poured into your lap. For with the measure you use, it will be measured to you.” – Luke 6:38
Grace: Getting, in spite of what you give.
Mercy: Not getting, in spite of what you give.