Please don't let me out

I've been in jail eleven years and parole has just come through
The gates will soon swing open wide but I'm not going through
Jail's the only home I know or care to know about
Please let me stay where I belong please don't let me out

How could I tell those friends of mine they've seen the last of me
Can't I make you understand I never can be free
Cause that's a big unfriendly world and I don't know the route
That leads to where I may belong please don't let me out
[ guitar ]
I had to learn to get along without a lot of things
And I had to learn to live with the loneliness confinement brings
And I learnt to take no mail from home or whatever came about
Now I'm dug in and I'm happy here please don't let me out

How could I tell those friends of mine...
Yes that's a big unfriendly world...