I Knocked And You Did Not Answer

You said I can come knocking anytime.
I did wrong,
I knocked and you answered
So easy?

You said I can come knocking anytime.
I did right,
I knocked and you answered
So easy?

Then my own got sick
I cried; I called
You heard and did not answer.
So hard now?

You said I can knock anytime
I knocked and begged for my own
She was taken away
I knocked and you did not answer