This does not mean that the journey will be easy. In fact, the Confession speaks of storms and floods that arise and beat us. Nonetheless, no one and nothing can shake us off that foundation and rock which by faith we are fastened upon. In these storms and floods and by the temptations of Satan, the sensible sight of the light and love of God may for a time be clouded and obscured for us (so also with our assurance, see chapter 18:4). This does not mean that God has changed; he is still the same. But we are being attacked by the enemy and are fighting or giving into temptation and are in need of restoration. Even in these storms and floods, we may be sure to be kept by the power of God unto salvation and the enjoyment of our purchased possession. The fact that the elect cannot lose their salvation is further shown from the fact that we are engraven upon the palm of His hands (Isa. 49:16) and our names having been written in the book of life from all eternity (Rev. 13:8; 20:15). All this is given for the confidence and encouragement of the believers in God’s faithfulness, goodness, grace, promise, and power.
The Impossibility Of Final Apostasy For The Elect
The biblical and Reformed doctrine of perseverance is a great mountain, which gives the saints assurance and faith in God’s almighty power in overcoming sin in us and completely saving us. The doctrine does not teach, contrary to non-Protestant caricatures, that Christians after being saved can do whatever they want to do and still remain saved. Rather, the doctrine teaches that those who have the Spirit of God indwelling in them will persevere in the faith by the almighty power of God. The Lord will chastise, sanctify and lead them toward a holier life.
That the doctrine is true and biblical may be seen from many ways (see paragraph 2), including (1) the decree of election, (2) regeneration, (3) justification and (4) Christ’s obedience.
Election: It has pleased God from all eternity to select a particular people in the Lord Jesus Christ whom He will redeem from sin to be with Him forever without any consideration of foreseen faith or works, merely because of His good pleasure. Seeing that their salvation was not dependent upon them, how would their perseverance be (completely) dependent upon them? There is no debate among Calvinists about whether the elect can lose their salvation. Someone who accepts Unconditional Election must believe in perseverance. It is logically necessary, for to contend otherwise is to say that God has unconditionally chosen a person to be saved, but has not chosen to preserve that particular person, which is absurd on its face. Therefore, the one who accepts Unconditional Election inevitably must accept the Perseverance of the Saints. For to reject the doctrine is to contend that ...