The forerunner (John The Baptist) would prepare people for the coming of the Messiah.
OT Prophecy NT Fulfillment
Isaiah 40:3b
"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."
Matthew 3:11
"I indeed baptize you with water unto repentance: but he that cometh after me is mightier than I, whose shoes I am not worthy to bear: he shall baptize you with the Holy Ghost, and with fire:"
Luke 1:17
"And he shall go before him in the spirit and power of Elias, to turn the hearts of the fathers to the children, and the disobedient to the wisdom of the just; to make ready a people prepared for the Lord."
John 1:29
"The next day John seeth Jesus coming unto him, and saith, Behold the Lamb of God, which taketh away the sin of the world."
John 3:28
"Ye yourselves bear me witness, that I said, I am not the Christ, but that I am sent before him."

Tanakh - Neviim - Isaiah 40:3b

"Hark! one calleth: 'Clear ye in the wilderness the way of HaShem, make plain in the desert a highway for our G-d."

 Hebrew OT - Isaiah 40:3b

הלסמ הברעב ורשי הוהי ךרד ונפ רבדמב ארוק לוק
.וניהלאל

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