Mark 1:1-8
Mark begins his gospel with quotes from Malachi (3:1) and Isaiah (40:3), describing a messenger sent by God to prepare the world for the coming Messiah. Mark identifies that messenger as John the Baptist, who came “preaching a baptism of repentance for the remission of sins.”
When an angel announced to John’s father Zacharias the impending birth of his son, he said he would “go before Him [the Christ] in the spirit and power of Elijah” (Luke 1:17).
Jesus extended high praise to John for his person and ministry saying, “among those born of women there has not risen one greater than John the Baptist,” and, “…he is Elijah who is to come, (a reference to Malachi 4:5)” (Luke 1:11,14).
John’s message was preparatory to the Messiah’s coming. One, John said, “whose sandal strap I am not worthy to stoop down and loose” (vs. 7). Where John baptized with (in) water, the Messiah would baptize with (in) the Holy Spirit, a reference to His divine nature. When the apostles received that baptism on Pentecost, Peter said it had come from the Christ (Acts 2:33).