John 1:23
23 He said, “I am tthe voice of one crying out in the wilderness, ‘Make straight1 the way of the Lord,’ as the prophet Isaiah said.”
Isaiah 40:3–5
d“In the wilderness prepare the way of the Lord;
emake straight in the desert a highway for our God.
4 fEvery valley shall be lifted up,
and every mountain and hill be made low;
the uneven ground shall become level,
and the rough places a plain.
5 gAnd the glory of the Lord shall be revealed,
and all flesh shall see it together,
hfor the mouth of the Lord has spoken.”