as He spoke through His holy prophets,
He has done this through the word spoken by his holy prophets.
It ties the rescue to the words of the prophets.
67Then his father Zechariah was filled with the Holy Spirit and prophesied: 68“Blessed be the Lord, the God of Israel, 69He has raised up a horn of salvation for us 70as He spoke through His holy prophets, 71salvation from our enemies 72to show mercy to our fathers 73the oath He swore to our father Abraham, 74to grant us deliverance from hostile hands, 75in holiness and righteousness before Him 76And you, child, will be called 77to give to His people the knowledge of salvation 78because of the tender mercy of our God, 79to shine on those who live in darkness 80And the child grew and became strong in spirit; and he lived in the wilderness until the time of his public appearance to Israel.