It is not known who set the text to this tune, and I have not found it published in this form, or any on-line examples. But the setting was widely known in New Zealand from the 1970s onwards, at least.
Sheet music for purchase:A book of arrangements of various hymn-tunes, including O WALY WALY for 2 violins and piano
Lyrics:Lord make me an instrument of peace,
Where there is hate let me sow love.
Where there is injury let me sow
A pardon deep as the flowing seas.
Where there is doubt let me sow faith.
Where there's despair let me sow hope.
Where there is dark let me sow light
Where there is sadness let me sow joy.
O loving Lord may I not seek
To be understood as to understand,
To be consoled as to console,
Or to be loved but to love all.
For it's in giving that we receive
It's in forgiving that we're forgiv'n
And it's in dying that we are born
To eternal life, to eternal life.