As long as we are in these mortal bodies we can and some do turn away and reject the salvation we had in Christ.
I would agree that men and women that are in Christ can fall into sin, and that they can forfeit their mortal lives as a result of that sin. However, In no portion of Scripture do we see Eternal Salvation lost. When a man is in Christ, and Christ in Him, that is the very basis of Eternal Salvation.
And it is eternal because of the source, Eternal God. Not just everlasting (that has application to our physical bodies, which have a beginning but will be made everlasting in glorification), but eternal, because we have been brought into Eternal Union with God.
Only God is Eternal, and when we are placed in Him, and He in us, we partake of that Eternal Nature:
1 Corinthians 10:16-21 King James Version
16 The cup of blessing which we bless, is it not the communion of the blood of Christ? The bread which we break, is it not the communion of the body of Christ?
17 For we being many are one bread, and one body: for we are all partakers of that one bread.
18 Behold Israel after the flesh: are not they which eat of the sacrifices partakers of the altar?
19 What say I then? that the idol is any thing, or that which is offered in sacrifice to idols is any thing?
20 But I say, that the things which the Gentiles sacrifice, they sacrifice to devils, and not to God: and I would not that ye should have fellowship with devils.
21 Ye cannot drink the cup of the Lord, and the cup of devils: ye cannot be partakers of the Lord's table, and of the table of devils.
Paul is basing his teaching on the teaching of Christ. "Except a man eat of His flesh and drink of His blood—he has not life in him."
We are made one with that bread and body, and we are partakers of that One Bread, which is Christ. One cannot be one with that bread and also that of the devil. One is either in Him or is not.
A clear distinction between the temporal and eternal is made here, and again it is based on Christ's teaching:
John 6:47-54 King James Version
47 Verily, verily, I say unto you, He that believeth on me hath everlasting life.
48 I am that bread of life.
49 Your fathers did eat manna in the wilderness, and are dead.
50 This is the bread which cometh down from heaven, that a man may eat thereof, and not die.
51 I am the living bread which came down from heaven: if any man eat of this bread, he shall live for ever: and the bread that I will give is my flesh, which I will give for the life of the world.
52 The Jews therefore strove among themselves, saying, How can this man give us his flesh to eat?
53 Then Jesus said unto them, Verily, verily, I say unto you, Except ye eat the flesh of the Son of man, and drink his blood, ye have no life in you.
54 Whoso eateth my flesh, and drinketh my blood, hath eternal life; and I will raise him up at the last day.
The correlation between the two teachings is not for the purpose of suggesting that we receive or maintain eternal life by partaking of Communion, that only memorializes what Christ has already done for us.
"Eating of His flesh and drinking of His blood" refers to believing. It is when we believe (as a result of the Comforter's Ministry) that we receive eternal life. We receive it because we receive Him Who is Eternal.
His flesh is "the Bread of Life, the Bread which came down from Heaven." Believing in His Offering of Himself is what is commanded that men must believe in this Age.
When we do that, we are made partakers of the divine nature (Eternal) hence we receive Eternal Life:
2 Peter 1 King James Version
3 According as his divine power hath given unto us all things that pertain unto life and godliness, through the knowledge of him that hath called us to glory and virtue:
4 Whereby are given unto us exceeding great and precious promises: that by these ye might be partakers of the divine nature, having escaped the corruption that is in the world through lust.
We have escaped due to receiving of His nature.
I know all of the teachings of the L.O.S.T. (the Loss Of Salvation Teachers) and I can already tell you how it will go if you try to present proof texts that conflict with Scripture's clear teaching that salvation in Christ is eternal and cannot be lost: you will present a proof text, and I will answer it. You will not respond to my address of that proof text but will then go on to the next proof text in your array. I know this because this is how it goes every time the L.O.S.T. try to teach a doctrine that conflicts with Scripture. THat's not arrogance, that is simply the facts that can be verified in the public record.
So let's deal with one of the proof texts as an example. The response to my last passage quoted, 2 Peter 1:3-4, would be met with this:
2 Peter 2:20-22 King James Version
20 For if after they have escaped the pollutions of the world through the knowledge of the Lord and Saviour Jesus Christ, they are again entangled therein, and overcome, the latter end is worse with them than the beginning.
21 For it had been better for them not to have known the way of righteousness, than, after they have known it, to turn from the holy commandment delivered unto them.
22 But it is happened unto them according to the true proverb, The dog is turned to his own vomit again; and the sow that was washed to her wallowing in the mire.
The reasoning is that in view are those who were "saved," and they have turned away.
The problem is that the text doesn't carry that out, nor does it negate the clear statements of Scripture that God will not forsake or leave us, and that He will finish the work He has begun in us.
Let's back up and give a broader context to Peter's statement:
2 Peter 2:15-19 King James Version
15 Which have forsaken the right way, and are gone astray, following the way of Balaam the son of Bosor, who loved the wages of unrighteousness;
16 But was rebuked for his iniquity: the dumb ass speaking with man's voice forbad the madness of the prophet.
17 These are wells without water, clouds that are carried with a tempest; to whom the mist of darkness is reserved for ever.
18 For when they speak great swelling words of vanity, they allure through the lusts of the flesh, through much wantonness, those that were clean escaped from them who live in error.
19 While they promise them liberty, they themselves are the servants of corruption: for of whom a man is overcome, of the same is he brought in bondage.
In v.15 we see reference to the revelation provided in the Old Testament being rejected by men. Peter contrasts that to the rejection of the revelation provided us through Christ and those who write "the other Scriptures."
Those in vv.20-21 certainly have received the knowledge of the truth, and this was through the means Christ said they would, the Comforter.
They are wells without water, as opposed to those who have living water pouring out of their bellies (which I view to be at least in part a reference to the Gospel preached by those who are saved).
They are servants of corruption, seeking to corrupt others with their false doctrine, just as Balaam.
And these folks are already known to God to be eternally damned v.17).
They are false teachers:
2 Peter 2 King James Version
1 But there were false prophets also among the people, even as there shall be false teachers among you, who privily shall bring in damnable heresies, even denying the Lord that bought them, and bring upon themselves swift destruction.
2 And many shall follow their pernicious ways; by reason of whom the way of truth shall be evil spoken of.
3 And through covetousness shall they with feigned words make merchandise of you: whose judgment now of a long time lingereth not, and their damnation slumbereth not.
They are false teachers, not believers who turn away. They were never saved, and Hell is awaiting them. Eternal Judgment is awaiting them.
Continued...