Bavinck on the perfect Savior

If Jesus is truly the Savior, he must also really save his people, not potentially but really and in fact, completely and eternally. And this, actually, constitutes the core of the difference between the proponents and the opponents of particular satisfaction (atonement). This difference is defined incorrectly or at least far from completely when one formulates it exclusively in the question whether Christ died and made satisfaction for all humans or only the elect...The real issue concerned the value and power of Christ's sacrifice, the nature of the work of salvation. To save, said the Reformed, is to save truly, wholly, for eternity...Those whom God loves and from whom Christ made satisfaction are saved without fail.

Herman Bavinck, Reformed Dogmatics vol. 3 p. 467