Luke 1:76-79

And you, child, will be called the prophet of the Most High. For you will go before the Lord to prepare his ways, to give his people knowledge of salvation through the forgiveness of their sins. Because of our God’s tender mercy the dawn will break upon us from on high to give light to those who sit in darkness and in the shadow of death, to guide our feet into the way of peace.”

Here we have the second part of Zechariah's prophecy. The first part of the prophecy was all about the coming Messiah, Jesus. This part is all about Zechariah's son John, who will prepare the hearts of Israel for the coming of Christ. Everything Zechariah prophesies reflects what Gabriel had foretold to him initially. These are also the powerful words of a father (both God and Zechariah via the Holy Spirit) being spoken into a son's life. I venture that this experience was quite beautiful for Zechariah, being used by God to speak truth about his son John, and God's Son Jesus.