My Dad used to sing a David Campbell song which I don't know the name of and I'm longing for the lyrics. Sadly, I can't ask him, so I'm asking you! Google throws up nothing and I've been through David's YouTube videos but it's not on there... Any help is gratefully received!

All I really remember are snippets but the chorus runs roughly:
The fish in the deep, never see the sun shine,
Or the [something something], or the fruit on the vine,
So dry your tears, walk tall in the day,
For the fears of the night, are soon faded away.