Christ would have a forerunner to go before Him.
Prophecy: "A voice of one who cries, Prepare in the wilderness the way of the Lord-clear away the obstacles-make straight and smooth in the desert a highway for our God"(Isaiah 40:3).
"Behold, I send my messenger and he shall prepare the way before Me. And the Lord, the Messiah, Whom you seek will suddenly come to his temple; the Messenger or Angel of the covenant Whom you desire, behold, He shall come, says the Lord of hosts"(Malachi 3:1).
"Behold, I will send you Elijah the prophet before the great and terrible day of the Lord comes"(Malachi 4:5).
Fulfilment: "In those days there appeared John the Baptist, preaching in the wilderness (desert) of Judea, and saying, Repent-that is, think differently; change your mind, regretting your sins and changing your conduct-for the kingdom of Heaven is at hand. This is he who was mentioned by the prophet Isaiah when he said, The voice of one crying in the wilderness--shouting in the desert:
Prepare the road for the Lord; make His highways straight (level, direct)" (Matthew 3:1-3).
"He said, I am the voice of one crying aloud in the wilderness..." (John 1:23).
"This is he concerning whom it is written, Behold, I send my messenger before Your face, who shall make ready Your way before You" (Luke 7:27).