John.8.35

And the servant abideth not in the house for ever: but the Son abideth ever.

John.8.35

A slave is a transient, who can't come and go at will. The Son, though, has an established position, the run of the house.

John.8.35

Now a slave has no permanent place in the family, but a son belongs to it forever.

John.8.35

And a slave does not abide in the house forever, but a son abides forever.