The Passover Haggadah includes a blessing of redemption
commemorating the exodus from Egypt.  In this blessing,
it looks forward to the future when “we will give thanks to you,
singing a new song about our redemption and the ransom
of our souls.”  We do not know what the content of the blessing
will be, but only that it will conclude, “Blessed are you, O LORD,
who has redeemed Yisra’el.”  Perhaps it will contain wording
similar to what we find in the books of Lukas and Revelation.
Like the Passover blessing, the “new song” will be recited each 
year in the season of redemption.

Blessed is the LORD, the God of Yisra’el,
for he has taken note of his people
       and sent them redemption.,
causing the horn of salvation to flourish for us
as he spoke through his holy prophets
      who were from long ago:
salvation from our enemies
      and from the hand of all who hate us,
showing devotion to our fathers
      and remembering his holy covenant,
the oath that he swore
      to our father Avraham,
to rescue us from the hand of our enemies
      and to allow us to serve him without fear,
with honesty and righteousness before him
      all the days of our lives. (Lukas 1:68-75)

Your deeds are great and fearsome,
        O LORD, God of legions!
Your ways are righteous and true,
        King of the nations!
Who will not fear you, O LORD?
        and give honor to your name?
        For you alone are holy.
For all nations will come and bow before you;
        for your righteous judgements have been revealed.
        (Revelation 15:3-4)

Blessed are you, O LORD, who has redeemed Yisra’el.