Isaiah 40:3-5
3aA voice 1is calling,“bPrepare the way for Yahweh in the wilderness;Make smooth in the desert a highway for our God.4“Let every valley be lifted up,And every mountain and hill be made low;And let the rough ground become a plain,And the rugged terrain a broad valley;51Then the aglory of Yahweh will be revealed,And ball flesh will see it together;For the cmouth of Yahweh has spoken.”