Isaiah 40:3

A voice [is] calling in the wilderness, "Clear the way of Yahweh! Make a highway smooth in the desert for our God!

Malachi 3:1

"Look! I [am] going to send my messenger, and he will prepare [the] way {before me}. And the Lord whom you [are] seeking will come suddenly to his temple, and the messenger of the covenant, [in] whom you [are] taking pleasure--look!--[he is] about to come," says Yahweh of hosts.

John 1:23

He said, "I [am] 'the voice of one crying out in the wilderness, "Make straight the way of the Lord," ' just as Isaiah the prophet said."

Malachi 4:5-6

Look! I [am] going to send to you Elijah the prophet before the coming of the great and awesome day of Yahweh!

Psalm 68:4

Sing to God, sing praises to his name. Lift up [a song] to [the] rider on the clouds--his name is Yah-- and rejoice before him.

Isaiah 43:19

Look! I [am] about to do a new thing! Now it sprouts! Do you not perceive it? Indeed, I will {make} a way in the wilderness, rivers in [the] desert.

Isaiah 57:14

And one shall say, "Build up, build up! Clear [the] way! Remove [the] obstacles from the way of my people!"

Mark 1:2-5

Just as it is written in the prophet Isaiah, "Behold, I am sending my messenger before your face, who will prepare your way,

Isaiah 11:15-16

And Yahweh will divide the tongue of the sea of Egypt, and he will wave his hand over the river with his scorching wind; and he will strike it into seven streams, and he will {make it passable by foot}.

Isaiah 35:8

And a highway shall be there, and a way, and it shall be called the way of holiness. [The] unclean shall not travel through it, but it [is] for them, he who walks [on the] way; and fools shall not wander about.

Isaiah 49:11

And I will {make} all my mountains like a road, and my highways shall lead up.

Isaiah 62:10-11

Pass through, pass through the gates! Make the way clear {for} the people! Pile up, pile up the highway; clear [it] of stones! Lift up an ensign over the peoples!

Matthew 3:1-3

Now in those days John the Baptist came preaching in the Judean wilderness

Luke 1:16-17

And he will turn many of the sons of Israel to the Lord their God.

Luke 1:76-77

And so you, child, will be called the prophet of the Most High, for you will go on before the Lord to prepare his ways,

Luke 3:2-6

in the time of the high priest Annas and Caiaphas, the word of God came to John the son of Zechariah in the wilderness.

Treasury of Scripture Knowledge

Summary

The voice of him that crieth in the wilderness, Prepare ye the way of the LORD, make straight in the desert a highway for our God.

Bible References

The voice

Matthew 3:1
Now in those days John the Baptist came preaching in the Judean wilderness
Mark 1:2
Just as it is written in the prophet Isaiah, "Behold, I am sending my messenger before your face, who will prepare your way,
Luke 3:2
in the time of the high priest Annas and Caiaphas, the word of God came to John the son of Zechariah in the wilderness.
John 1:23
He said, "I [am] 'the voice of one crying out in the wilderness, "Make straight the way of the Lord," ' just as Isaiah the prophet said."

Prepare

Isaiah 35:8
And a highway shall be there, and a way, and it shall be called the way of holiness. [The] unclean shall not travel through it, but it [is] for them, he who walks [on the] way; and fools shall not wander about.
Isaiah 57:14
And one shall say, "Build up, build up! Clear [the] way! Remove [the] obstacles from the way of my people!"
Isaiah 62:10
Pass through, pass through the gates! Make the way clear {for} the people! Pile up, pile up the highway; clear [it] of stones! Lift up an ensign over the peoples!
Malachi 3:1
"Look! I [am] going to send my messenger, and he will prepare [the] way {before me}. And the Lord whom you [are] seeking will come suddenly to his temple, and the messenger of the covenant, [in] whom you [are] taking pleasure--look!--[he is] about to come," says Yahweh of hosts.
Malachi 4:5
Look! I [am] going to send to you Elijah the prophet before the coming of the great and awesome day of Yahweh!
Luke 1:16
And he will turn many of the sons of Israel to the Lord their God.

General references

Isaiah 19:23
On that day, there will be a highway from Egypt to Assyria, and Assyria will come into Egypt, and Egypt into Assyria, and Egypt will worship together with Assyria.
Isaiah 49:11
And I will {make} all my mountains like a road, and my highways shall lead up.
Matthew 11:10
It is this man about whom it is written: 'Behold, I am sending my messenger before your face, who will prepare your way before you.'
Mark 1:3
the voice of one shouting in the wilderness, 'Prepare the way of the Lord, make straight his paths!'"
Luke 1:16
And he will turn many of the sons of Israel to the Lord their God.