Romans 4:18 — Who against hope believed in hope, that he might become the father of many nations; according to that which was spoken, So shall thy seed be.
against hope — an oxymoron, beyond hope. Abraham had hope contrary to human expectation.
So shall thy seed be — referring to stars. And He brought him forth abroad, and said, Look now toward heaven, and tell the stars, if thou be able to number them: and He said unto him, So shall thy seed be (Genesis 15:5).