Genesis 15:6-8

Young's Literal Translation

⁶ And he hath believed in Jehovah, and He reckoneth it to him -- righteousness.

⁷ And He saith unto him, `I [am] Jehovah who brought thee out from Ur of the Chaldees, to give to thee this land to possess it;'

⁸ and he saith, `Lord Jehovah, whereby do I know that I possess it?'