Today, just a couple of brief passage supporting the belief that a Christian may forfeit their salvation (and tomorrow will be the conclusion of this study).
2 Peter 3:17 says, “Therefore, dear friends, since you already know this, be on your guard so that you may not be carried away by the error of lawless men and fall from your secure position.” Simply put, one may be secure in their salvation, but still fall away. The believer does have security and assurance as long as they remain in Christ. This is our secure position. However here we also see that if carried away by error, you may fall from this position.
2 Peter 2:20 gives a stark warning: “If they have escaped the corruption of the world by knowing our Lord and Savior Jesus Christ and are again entangled in it and overcome, they are worse off at the end than they were at the beginning.” Here first we see that the one being spoken of here knows the Lord, and because of this has escaped the world’s corruption (this is what it is to be born again). Then that person has been entangled again in the former way of life in that corruption, and has been overcome by it. The warning to this person is that they are worse off than before. If before they were sinners condemned due to their sinful nature (John 3:18), were born again, and are now worse than before, how terrible is that condemnation. This warning goes on to say, “It would have been better for them not to have known the way of righteousness, than to have known it and then to turn their backs on the sacred command that was passed on to them. Of them the proverbs are true: ‘A dog returns to its vomit,’ and ‘A sow that is washed goes back to her wallowing in the mud’ (v. 21-22).