The tune is un-named. It has a 4/4 time signature and was originally published in they key of Ab, in which the first few notes are A A A A, A G F. Sheet music is currently available for free download (link below) from the Weston Priory website.
The composer with congregation - self accompanied on keyboard
Solo singer with backing:
LyricsThe lyrics are copyright so cannot be reproduced here. But they are currently available here - complements of Weston Priory.
The song starts with a chorus (Alleluia, repeated 4 times) and this is sung after each of the XXX verses. A rough outline is:
Alleluia, Alleluia, Alleluia, Alleluia
Something which is known
To have been from the beginning:
.... The Word who is life, this we share with you.
This is the life of our God, so gracious,
... Alive in God’s own spirit.
He it is in whom we have found
...the fullness of our joy.