For therefore we both labor and suffer reproach, because we trust in the living God, who is the Savior of all men, especially of those that believe.
Read Chapter 4
Augustine of Hippo
AD 430
But in the Lord’s own very humility (in consenting to be baptized by John) there is a marvelous medicine; one was baptizing, the other healing. You see, if Christ is the Savior of all, especially of the faithful—it is the apostle’s judgment, and a true one, that Christ is the Savior of all—then nobody may say, “I have no need of a savior.” If you say this, you are not bowing humbly to the doctor’s orders but perishing in your disease.
And to speak comprehensively, all benefit appertaining to life, in its highest reason, proceeding from the Sovereign God, the Father who is over all, is consummated by the Son, who also on this account "is the Saviour of all men "says the apostle, "but especially of those who believe."
The Savior of all, especially of believers, is spoken of by the apostle as one. Yet no one argues from this expression that the Son does not save believers or that those who share in salvation receive it apart from the Spirit. But God who is over all is the Savior of all, while the Son brings salvation to effect by the grace of the Spirit. Yet on this account Scripture does not call them three Saviors, although salvation is recognized to come from the holy Trinity. An Answer to Ablabius: That We Should Not Think of Saying There Are Three Gods.
But ye, being full of the Holy Spirit, do nothing according to the flesh, but all things according to the Spirit. Ye are complete in Christ Jesus, "who is the Saviour of all men, specially of them that believe."
This in effect is to say, wherefore do we mortify ourselves, unless we expect future blessings? Have we endured so many evils, submitted to so many reproaches, suffered such insults and calumnies, and such numerous calamities in vain? For if we did not trust in the living God, on what account did we submit to these things? But if God is here the Saviour of the unbelieving, much more is He of the faithful hereafter. What salvation does he speak of? That to come? Who is the Saviour, he says, of all men, specially of them that believe. At present he is speaking of that which is here. But how is He the Saviour of the faithful? Had he not been so, they must long since have been destroyed, for all men have made war upon them. He calls him here to endure perils, that having God for his Saviour he may not faint nor need any aid from others, but willingly and with fortitude endure all things. Even those who eagerly grasp at worldly advantages, supported by the hope of gain, cheerfully undertake...
We also, following our teacher Christ, “who is the Savior of all men, especially of those that believe.” are obliged to say that there are two ways. One is the way of life, the other of death. These have no comparison one with another, for they are very different, or rather entirely separate. The way of life is that of nature, but that of death was afterwards introduced—it not being according to the mind of God but from the snares of the adversary.