I’m only happy in heaven

I’m only happy in heaven 
by Joel Howard
A lament, see Psalm 137

My heart carries a lament
But you want entertainment 
How can I sing 
When I am missing heaven?

You ask me for mirth
For songs but I’m not sure
How can I sing
When I am missing heaven?

“Sing us one of your songs
Sing us O sing us”
But how can I sing 
When I am missing heaven...