Messianic Prophecy: Messiah’s forerunner will be a voice in the desert:

Prophecy:

A voice is calling,
“Clear the way for the LORD in the wilderness;
Make smooth in the desert a highway for our God.
“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;
Then the glory of the LORD will be revealed,
And all flesh will see it together;
For the mouth of the LORD has spoken.”

Isaiah 40:3-5

Fulfillment:

For this is the one referred to by Isaiah the prophet when he said,

“THE VOICE OF ONE CRYING IN THE WILDERNESS,
‘MAKE READY THE WAY OF THE LORD,
MAKE HIS PATHS STRAIGHT!’”

Matthew 3:3

THE VOICE OF ONE CRYING IN THE WILDERNESS,
‘MAKE READY THE WAY OF THE LORD,
MAKE HIS PATHS STRAIGHT.’”

Mark 1:3

as it is written in the book of the words of Isaiah the prophet,

“THE VOICE OF ONE CRYING IN THE WILDERNESS,
‘MAKE READY THE WAY OF THE LORD,
MAKE HIS PATHS STRAIGHT.

Luke 3:4

He said, “I am A VOICE OF ONE CRYING IN THE WILDERNESS, ‘MAKE STRAIGHT THE WAY OF THE LORD,’ as Isaiah the prophet said.”

John 1:23