The Apostle’s assertion has been that God has done everything in connection with our salvation. It is God who ‘foreknew’ us and therefore ‘predestinated’ us, and therefore ‘called’ us and therefore ‘justified’ us and therefore ‘glorified’ us. And the aregument is that, because God has done so, salvation is certain
Dr Martyn Lloyd-Jones
From the book "ROMANS. An Exposition of Chapter 8. 17-39 The Final Perseverance of the Saints."