This is a particularly gorgeous song by Br Rufino Zaragoza. It is published by OCP but I couldn’t find a downloadable version.
You can hear a lovely version here.
My version is an exercise in BIAB jazz that is probably unsuitable except for learning the tune.
O silent God, Holy One, God Unseen, God unknown.
Hear my prayer, hear my cry. Have you abandoned me?
In this dying I join your dying; in rising, I join your rising;
In this dying, I join your dying with Jesus, the glory of God.
© OCP Publications, 1988,1990.