It was originally published in his Eagles Wings collection, and so is included in the Scripture in Song - The Music of Frank Andersen MSC collection, which is still available. Both of there include lead-sheet style sheet music.
The tune was written by Fr Andersen: it is in a major key (A in the original printing), with a 4/4 time signature. The first few notes in this key are E, c E F. The scan in the verses is tricky, and the original printing suggested that they needed to be sung by a cantor or choir, with the congregation joining the chorus.
The range of videos on YouTube suggest that it has become popular in the Pacific and perhaps Latin America.
Solo singer, accompanying himself on guitar - with light vocal backing in the chorus
Band, with a distinct Latino sound and an upbeat tempo:
Solo singer with keyboard + band backing - at a sedate pace similar to the original recording:
LyricsThe lyrics are copyright so cannot be reproduced here. But they are currently available on this website.
The song starts with a 4-line chorus which is repeated after each of the verses, which are also four lines long. A rough outline is:
I thank my God
Each time I think of you.
And when I pray for you,
I pray with joy.
1 Now there is one thing I am sure of,
2 That I should feel like this towards you
3 Since you have borne with me my burdens,
4 I pray your knowledge will be deepened ...