The doctrine of “once saved, always saved,” often referred to as eternal security, is not explicitly stated in a single Bible verse but is derived from several passages. Here are a couple of key verses often cited to support this doctrine:
John 10:28-29 (NIV):
“I give them eternal life, and they shall never perish; no one will snatch them out of my hand. My Father, who has given them to me, is greater than all; no one can snatch them out of my Father’s hand.”
Romans 8:38-39 (NIV):
“For I am convinced that neither death nor life, neither angels nor demons, neither the present nor the future, nor any powers, neither height nor depth, nor anything else in all creation, will be able to separate us from the love of God that is in Christ Jesus our Lord.”
But the problem with this doctrine is in the definition of “saved”. What exactly are we being saved from? Hell? No. That is a byproduct of what we are being saved from.
The Bible specifically says these things:
John 8:34-36 (NIV)
“Jesus replied, ‘Very truly I tell you, everyone who sins is a slave to sin. Now a slave has no permanent place in the family, but a son belongs to it forever. So if the Son sets you free, you will be free indeed.’”
Romans 6:22 (NIV)
“But now that you have been set free from sin and have become slaves of God, the benefit you reap leads to holiness, and the result is eternal life.”
Galatians 5:1 (NIV)
“It is for freedom that Christ has set us free. Stand firm, then, and do not let yourselves be burdened again by a yoke of slavery.”
1 Peter 2:24 (NIV)
“He himself bore our sins in his body on the cross, so that we might die to sins and live for righteousness; by his wounds you have been healed.”
Romans 6:18 (NIV)
“You have been set free from sin and have become slaves to righteousness.”
John 10:10 (NIV):
“The thief comes only to steal and kill and destroy; I have come that they may have life, and have it to the full.”
When we accept Jesus’ sacrifice, we are accepting that he is saving us from slavery to sin (and its consequences). And when we accept Jesus’ offer of salvation, we are accepting Jesus to be our new Lord (master).
It makes no sense to continue choosing to sin after we have accepted Jesus freeing us from slavery to sin. Those have truly accepted the offer of salvation, will not choose to return to their old master.
Does that mean we can lose our salvation? I think it is possible for people to voluntarily forfeit their salvation by ignoring Jesus’ commands.
John 14:15 (NIV):
“If you love me, keep my commands.”
Matthew 22:36-40 (NIV):
“Teacher, which is the greatest commandment in the Law?” Jesus replied: “‘Love the Lord your God with all your heart and with all your soul and with all your mind.’ This is the first and greatest commandment. And the second is like it: ‘Love your neighbor as yourself.’ All the Law and the Prophets hang on these two commandments.”
If we earnestly try to keep these commands, then we realize that it is impossible to choose to sin at the same time. And vice versa.
Matthew 7:19 (NIV):
“Every tree that does not bear good fruit is cut down and thrown into the fire.”