Romans 4:16-17

For this reason it is by faith so that it may be by grace, with the result that the promise may be certain to all the descendants—not only to those who are under the law, but also to those who have the faith of Abraham, who is the father of us all  (as it is written, “I have made you the father of many nations”). He is our father in the presence of God whom he believed—the God who makes the dead alive and summons the things that do not yet exist as though they already do.

God is an author who has authority like no other. He speaks, and the heavens and the earth are created. Hebrews 5:8-10 says about Jesus, “Though he were a Son, yet learned he obedience by the things which he suffered; And being made perfect, he became the author of eternal salvation unto all them that obey him; Called of God an high priest after the order of Melchisedec.” (KJV) Abraham believed by faith, and it must be by faith for us as well. If we come to believe we have qualified ourselves before the Lord, then pride has already taken hold. We are able to be saved because God saw fit to grant the authority for our salvation to His Son – who was willing to suffer and sacrifice. Because of Jesus, the reality of being dead in our transgressions points us to eternal life in Him.