I just did a little search and I found where you can actually get this song.

There is a recording done by Wilfred Jackie Edwards and the album is 'Stand up for Jesus'. The title of the song is 'If you only knew the blessing'. You can have a listen at:

http://sample.music.yahoo.com/radio/clientdata/616/player.asp?cid=616&iid=1&sk=3<w=LaunchRadioTarget&p=6&m=0&d=0&modeInitialized=1&mode=1&resized=1&bridgeInit=1&bridgeMode=1&sids=59959702