It isn’t Scriptural as far as I can tell. It’s not a Catholic idea either-- and I think the idea has been condemned on numerous occasions by our Catholic Church.
But for those who have root. The good soil hearer, then there is eternal security, by grace, through faith, and onto good works. There is scripture that show eternal security:
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John 10
25 Jesus answered them, “I told you, and you do not believe. The works that I do in My Father’s name, they bear witness of Me. 26 But you do not believe, because you are not of My sheep, as I said to you. 27 My sheep hear My voice, and I know them, and they follow Me. 28 And I give them eternal life, and they shall never perish; neither shall anyone snatch them out of My hand. 29 My Father, who has given them to Me, is greater than all; and no one is able to snatch them out of My Father’s hand. 30 I and My Father are one.”
Hebrews 6
4 For it is impossible for those who were once enlightened, and have tasted the heavenly gift, and have become partakers of the Holy Spirit, 5 and have tasted the good word of God and the powers of the age to come, 6 if they fall away,to renew them again to repentance, since they crucify again for themselves the Son of God, and put Him to an open shame.
Romans 8
31 What then shall we say to these things? If God is for us, who can be against us? 32 He who did not spare His own Son, but delivered Him up for us all, how shall He not with Him also freely give us all things? 33 Who shall bring a charge against God’s elect? It is God who justifies. 34 Who is he who condemns? It is Christ who died, and furthermore is also risen, who is even at the right hand of God, who also makes intercession for us. 35 Who shall separate us from the love of Christ? Shall tribulation, or distress, or persecution, or famine, or nakedness, or peril, or sword? 36 As it is written:
Code:
“ For Your sake we are killed all day long;
We are accounted as sheep for the slaughter.”[a]
37 Yet in all these things we are more than conquerors through Him who loved us. 38 For I am persuaded that neither death nor life, nor angels nor principalities nor powers, nor things present nor things to come, 39 nor height nor depth, nor any other created thing, shall be able to separate us from the love of God which is in Christ Jesus our Lord.
John 6:37
All that the Father giveth me shall come to me; and him that cometh to me, I will in no wise cast out.
1 John 3
9 Whoever has been born of God does not sin, for His seed remains in him; and he cannot sin, because he has been born of God.
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People have to come to Christ by faith. I agree that there are people who think they say a sinner’s prayer, and they are saved, and keep sinning willfully are not saved. But it is expected that a genuine believer will occasionally fall into sin. Even catholics distinguish mortal sin from venial sin? Venial sins do not dam, correct? A true believer will not commit mortal sin, or else they were never saved to begin with. I have shown this with above scripture. But a believer may occasionally fall.
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1 John 5
16 If anyone sees his brother sinning a sin which does not lead to death, he will ask, and He will give him life for those who commit sin not leading to death. There is sin leading to death. I do not say that he should pray about that. 17 All unrighteousness is sin, and there is sin not leading to death.
1 John 2
1 My little children, these things I write to you, so that you may not sin. And if anyone sins, we have an Advocate with the Father, Jesus Christ the righteous. 2 And He Himself is the propitiation for our sins, and not for ours only but also for the whole world.
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But the works are evidence, the effect, and not the cause. You have to admit, the language related to faith and works is always, believe first, and therefore they work. Not the other way around. Work without faith is as useless as faith without work.
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Hebrews 11:6
6 But without faith it is impossible to please Him, for he who comes to God must believe that He is, and that He is a rewarder of those who diligently seek Him.
1 John 5
1 Whoever believes that Jesus is the Christ is born of God, and everyone who loves Him who begot also loves him who is begotten of Him. 2 By this we know that we love the children of God, when we love God and keep His commandments. 3 For this is the love of God, that we keep His commandments. And His commandments are not burdensome. 4 For whatever is born of God overcomes the world. And this is the victory that has overcome the world—our[a] faith. 5 Who is he who overcomes the world, but he who believes that Jesus is the Son of God?
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Check out
here for more information.
Thanks for the link, I have read this before. But I subscribe to believing alone as to not really believing at all. I have explained this above.