Isaiah 40:3-5

40:3 A voice cries out,

“In the wilderness clear a way for the Lord;

construct in the desert a road for our God.

40:4 Every valley must be elevated,

and every mountain and hill leveled.

The rough terrain will become a level plain,

the rugged landscape a wide valley.

40:5 The splendor of the Lord will be revealed,

and all people will see it at the same time.

For the Lord has decreed it.”

Matthew 3:3

3:3 For he is the one about whom Isaiah the prophet had spoken:

“The voice of one shouting in the wilderness,

‘Prepare the way for the Lord, make his paths straight.’”

Mark 1:3

1:3 the voice of one shouting in the wilderness,

‘Prepare the way for the Lord,

make his paths straight.’”

John 1:23

1:23 John said, “I am the voice of one shouting in the wilderness, ‘Make straight the way for the Lord,’ as Isaiah the prophet said.”