John the Baptist the Second Witness.
#1. Malachi 4:5 "Behold, I will send you Elijah the prophet before the coming of the great and dreadful day of the LORD: Malachi 4:6 "And he shall turn the heart of the fathers to the children, and the heart of the children to their fathers, lest I come and smite the earth with a curse”.
Direct reference,
Luke 1:15 "For he shall be great in the sight of the Lord, and shall drink neither wine nor strong drink; and he shall be filled with the Holy Ghost, even from his mother's womb. Luke 1:16 "And many of the children of Israel shall he turn to the Lord their God. 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.
#2. Isaiah 40:3 "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”.
Direct reference,
Matthew 3:1 "In those days came John the Baptist, preaching in the wilderness of Judaea,Matthew 3:2 "And saying, Repent ye: for the kingdom of heaven is at hand. Matthew 3:3 "For this is he that was spoken of by the prophet Esaias, saying, The voice of one crying in the wilderness, Prepare ye the way of the Lord, make his paths straight”.
John 1:22 "Then said they unto him, Who art thou? that we may give an answer to them that sent us. What sayest thou of thyself? John 1:23 "He said, I am the voice of one crying in the wilderness, Make straight the way of the Lord, as said the prophet Esaias. John 1:24 "And they which were sent were of the Pharisees”.
#3. Malachi 3:1 "Behold, I will send my messenger, and he shall prepare the way before me: and the Lord, whom ye seek, shall suddenly come to his temple, even the messenger of the covenant, whom ye delight in: behold, he shall come, saith the LORD of hosts”.
Direct reference
Matthew 11:7 "And as they departed, Jesus began to say unto the multitudes concerning John, What went ye out into the wilderness to see? A reed shaken with the wind? Matthew 11:8 "But what went ye out for to see? A man clothed in soft raiment? behold, they that wear soft clothing are in kings' houses. Matthew 11:9 "But what went ye out for to see? A prophet? yea, I say unto you, and more than a prophet. Matthew 11:10 "For this is he, of whom it is written, Behold, I send my messenger before thy face, which shall prepare thy way before thee.
Now the direct Reference: John 1:6 "There was a man sent from God, whose name was John.John 1:7 "The same came for a witness, to bear witness of the Light, that all men through him might believe.John 1:8 "He was not that Light, but was sent to bear witness of that Light.
can't get any plainer.