Charles Spurgeon Commentary Romans 4:16-17

"For this cause [it is] of faith, that [it may be] according to grace; to the end that the promise may be sure to all the seed; not to that only which is of the law, but to that also which is of the faith of Abraham, who is the father of us all (as it is written, A father of many nations have I made thee) before him whom he believed, [even] God, who giveth life to the dead, and calleth the things that are not, as though they were." — Romans 4:16-17 (ASV)

To the end the promise might be sure to all the seed; not to that only which is of the law, but to that also which is of the faith of Abraham; who is the father of us all.

What a God we trust in – a God who gives life to the dead. We have no faith unless we believe in such a God as this. We will need such a God in order to bring us safely to His right hand at last.