The songs name is "Prophesy" By Leroy Gibbons another was sung by Freddie McGregor... I was looking for this song for years too, glad if I can help!
Old Reggae Song Goes When The Rain Stops Falling Down And We Ain't Got No Water We Gonna Bow Down To The Ground Wishing That We Were Under? What's The Title Need This Song Looking Since 1989
Words go looks like the moon it doesnt shine for me I wonder y I always try do right in the peoples eye but freedom is a must no matter how they fuss we read this thing in prophecy and when the rain starts falling down and they got no water what they going to drink they going to fall down to the grown wishing that was under pray dat1