I'M ON THE INSIDE, ON WHICH SIDE ARE YOU..?

One door, and only one
And yet its sides are two,
Inside and outside,
On which side are you?

One Door, and only one,
And yet its sides are two,
I'm on the inside,
On which side are you? 

One Lord, and only one
And yet the ways are two,
Right way and wrong way
on which way are you?

One Lord, and only one
And yet its ways are two
I’m on the right way,
on which way are you?

One Book, and only one
Which tells of places two
Good place or bad place
on which place choose you?

One Book and only one
which tells the place is true
I choose the good place,
and which place choose you?