Mark 1:3

"The voice of a crier in the wilderness, Prepare ye the way of the Lord, make his paths straight."

Isaiah 40:3-5

A voice crieth in the wilderness, "Prepare the way for the LORD, make straight the path for our God in the desert.

Matthew 3:3

This is he of whom it is spoken by the Prophet Isaiah, which sayeth, "The voice of a crier in wilderness, 'Prepare the Lord's way and make his paths straight.'"

Luke 3:4-6

as it is written in the book of the sayings of Isaiah the prophet, which sayeth, "The voice of a crier in wilderness, prepare the way of the Lord, make his paths straight.

John 1:15

John bare witness of him and cried, saying, "This was he of whom I spake, which though he came after me, went before me: for he was before me."

John 3:28-36

Ye yourselves are witnesses, how that I said, 'I am not Christ: but am sent before him.'

John 1:19-34

And this is the record of John: When the Jews sent priests and Levites from Jerusalem, to ask him, "What art thou?"

Treasury of Scripture Knowledge

Summary

The voice of one crying in the wilderness, Prepare ye the way of the Lord, make his paths straight.

Bible References

General references

Isaiah 40:3
A voice crieth in the wilderness, "Prepare the way for the LORD, make straight the path for our God in the desert.
Matthew 3:3
This is he of whom it is spoken by the Prophet Isaiah, which sayeth, "The voice of a crier in wilderness, 'Prepare the Lord's way and make his paths straight.'"
Luke 3:4
as it is written in the book of the sayings of Isaiah the prophet, which sayeth, "The voice of a crier in wilderness, prepare the way of the Lord, make his paths straight.
John 1:15
John bare witness of him and cried, saying, "This was he of whom I spake, which though he came after me, went before me: for he was before me."
John 3:28
Ye yourselves are witnesses, how that I said, 'I am not Christ: but am sent before him.'