This is not a new song by Janet Sullivan Whitaker, but it has been added by OCP to Breaking Bread for 2024. It is the Exodus Canticle from the Easter liturgies. It is meant for a cantor and choir but could be sung through by an assembly if needed, though it goes a little high and is quite the production. Nonetheless, if YouTube is anything to go, by it very popular in the US.
The sheet music is at OCP where the text is in their preview.