What does Luke 1:78 mean?
The father of John the Baptist (Luke 3:2–3) is celebrating God's fulfillment of prophecy (Luke 1:67–68). Old Testament prophets promised a herald to announce the coming of the Messiah (Isaiah 40:3). As Zechariah speaks, that prediction is coming true in the birth of John (Luke 1:14–17, 57). Prior verses explicitly pointed out that John's role was to be an announcer of sorts for the Promised One (Luke 1:76–77). That Promised One, the "Most High," is Jesus (Luke 1:31–33). John's ministry of preaching repentance and baptism (Matthew 3:1–5) will set the stage for Jesus' work in offering salvation to all who believe (John 3:16–17; Philippians 2:8; 2 Corinthians 5:21).Malachi was the last prophet of the Old Testament. His message included more details about the person who would announce the ministry of the Christ (Malachi 3:1; 4:6). Part of Malachi's prophecy included references to sunrise (Malachi 4:2). The imagery of the sun, rising over the horizon to touch earth with light and warmth, symbolizes the arrival of the Savior (John 1:9). John the Baptist is not that Light (John 1:6–8), but he clearly draws people's attention to Jesus (John 1:19–23).