Now the servant abideth not in the house for ever; but the son abideth for ever.
And the servant abideth not in the house for ever: but the Son abideth ever.
Now a slave does not remain in a household permanently (forever); the son [of the house] does remain forever.
And the bondservant abideth not in the house for ever: the son abideth for ever.
A slave isn’t a permanent member of the household, but a son is.
Now the slave does not abide in the house for eternity. Yet the Son does abide in eternity.