This is a song for Eucharist with words by Gabe Huck based on Psalm 114 and the Exsultet and set by Tony Alonso. It is in Gather 3rd edition.
It has the further use for Easter, but I don’t think it is as good as other Alonso tunes – it is a bit sing song.
The sheet music is at GIA, where the text is in their preview – all nine verses, which are meant to be mainly sung by the cantor with the assembly’s response, “Alleluia!”