Interesting info I found on why Baptists have it so wrong;
The Final Security Of The Believer
There is another thing on which the Baptist Church is wrong.
They teach once in grace always in grace, or final security for the believer.
On this subject the Baptist Church makes three fatal mistakes.
They fail to recognize that we can nullify that by which we are saved; they fail to recognize that salvation is conditional; and they fail to recognize what a child-of God can do.
Let us notice these three things:
Nullifying That By Which We Are Saved
We are saved by faith but some may depart from the faith (1 Tim. 4:1).
We are saved by grace but some may fail of the grace of God (Heb. 12:15).
We are saved by hope but some may be moved away from the hope (Col. 1:23).
We are saved by blood but some may count the blood unholy (Heb. 10:29).
We are saved by Lord but some may deny the Lord (2 Pet. 2:1).
We are saved by truth but some may err from the truth (Jas. 5:19).
We are saved by love but some may not keep in the love (Jude 21).
We are saved by gospel but some may believe it in vain (1 Cor. 15:1-2).
We are saved by promise but some may come short of it (Heb. 4:1).
We are saved by God but some may depart from God (Heb. 3:12).
We are saved by Spirit but some may do despite unto it (Heb. 10:29).
We are saved by enduring but some may not endure (Matt. 10:22).
It is easy to see that the love of God, the truth of God, the grace of God, the promise of God, and all the other things that enter into our salvation depend altogether upon what disposition we make of these blessings.
Salvation Is Conditional
We are saved if we keep in memory . . . (1 Cor. 15:2).
We are the Lord’s house if we hold fast (Heb. 3:6).
We are holy if we continue in the faith (Col. 1:23).
We are cleansed if we walk in the light (1 John 1:7).
We shall never fall if we do these things (2 Pet. 1:10).
We are disciples indeed if we continue in the word (John 8:31).
The Father will honor us if we serve Christ (John 12:26).
We shall reap if we faint not (Gal. 6:9).
It doesn’t take a Solomon to see that these blessings are based upon what we do about them. Meet the conditions and you can’t fail. Fail to meet them and you already have fallen!
Things A Child Of God Can Do
He can fail of the grace of God (Heb. 12:15).
He can be led away with error of the wicked (2 Pet. 3:17).
He can err from the truth (Jas. 5:19).
He can turn aside after Satan (1 Tim. 5:15).
He can fall from his steadfastness (2 Pet. 3:17).
He can perish if he is weak (1 Cor. 8:11).
He can forsake the right way (2 Pet. 2:14-15).
He can turn from the holy commandment (2 Pet. 2:21).
He can fall into condemnation (Jas. 5:12).
He can be a castaway (1 Cor. 9:27).
He can be cast forth as a branch and be burned (John 15:1-6).
He can become neither hot nor cold (Rev. 3:14-18).
He can be spoiled through deceit (Col. 2:8).
He can be moved away from the hope (Col. 1:23).
He can deny the Lord that bought him (2 Pet. 2:1).
He can do despite unto the Spirit if grace (Heb. 10:29).
He can depart from the living God (Heb. 3:12).
He can come short of the promise of God (Heb. 4:1).
He can believe the gospel in vain (1 Cor. 15:1-3).
He can count the blood of the covenant unholy (Heb. 10:29).
He can depart from the faith (1 Tim. 4:1).
He can fall after the same example of unbelief (Heb. 4:11).
If one should do all of these things would he still be saved? If he did part of these things would he be saved? If he did only one of these things would he still be saved?
The Baptist Church teaches a plan of salvation unknown to the word of God.
You can do everything in the New Testament and you still won’t be a Baptist.
The Baptist Church does not seek God after the due (divine) order. They change the order every time.
The Baptist Church rejects every word the Bible says about being baptized. The Baptist Church perverts every thing the New Testament says in the “Deadly Contrast” which I have drawn.
The Baptist Church misinterprets and misapplies every word the Bible says in their teaching concerning the final security of the believer.
The Baptist Church nullifies every thing the New Testament says about what we may do with the things by which we are saved.
The Baptist Church fails to take into consideration that salvation is conditional and depends upon what we do about the matter.
The Baptist Church ignores every thing the Bible says about what a child of God can do.
In short, the Baptist Church teaches you don’t do anything to be saved and then that you can’t do anything to be lost.
They are wrong on both ends.