Who wrote the poem that starts with "It's so easy to abuse an angel"?

The full first verse isIts so easy to abuse an angelThey show their open faces like the blindBe courteous, they expect it, that preciselyIs a gift of

The full first verse is
It's so easy to abuse an angel
They show their open faces like the blind
Be courteous, they expect it, that precisely
Is a gift of angels visiting our kind.

I read it many years ago in a strange place, but can't find anything by Google now...

or:The full first verse isIt's so easy to abuse an angelThey show their open faces like the blindBe courteous, they expect it, that preciselyIs a gift of angels visiting our kind.I read it many years ago in a strange place, but can't find anything by Google now...

Tags:angel,