Romans 4:17:

(As it is written, I have made thee a father of many nations,) before him whom he believed, even God, who quickeneth the dead, and calleth those things which be not as though they were.

See also:

Believing in God vs. Believing God
What Romans 8:11 Really Means
Only GOD Can Call the Things That Be Not as Though They Were (Romans 4:17)
Objection: Saying, “I Am Healed” When You Are Actually Sick Is Lying, and Therefore Sin
Condition: Nonviability