He might be vexed, because some of us do not believe that 1 John 2.19 is written to give us permission to use that verse as a bully billy club to to claim someone who they thought was saved was never, ever really saved to begin with......
I believe personally, it is spiritually, emotionally and intellectually dishonest of any saint to use 1 John 2.19 apologetically as a proof test of salvation or no salvation...I say this because the context of 1 John 2.19 having anything to do with who is saved or not saved, salvation, losing salvation and salvation in general simply is not there....
I say this same thing about 1 John 4.1-4...Please do not get on a prayer line or altar counseling and ask someone if they believe Jesus came in the flesh as a test to see if they are demonized or not...
I view 1 John 2.19 and most of 1 John as a warning letter, teaching me how to discern against false teachers with a spirit of antichrist....and most of it it tells me that those such people are not believers and are never going to be believers and has zero to do with testing salvation of people...
That is why I fight people on 1 John 2.19...I have seen first hand how many people have been broken by someone claiming they were never really saved to begin with.....and use that verse to justify their judgement....not discernment...big difference in the two...
Where on GOD's green earth did you get the idea that we consider
1 John 2:19 is our proof text of whether or not they were REALLY SAVED.
Here is the real Proof Text:
Matthew 7:16-20 (HCSB)
16 You’ll recognize them by their fruit. Are grapes gathered from thornbushes or figs from thistles?
17 In the same way, every good tree produces good fruit, but a bad tree produces bad fruit.
18 A good tree can’t produce bad fruit; neither can a bad tree produce good fruit.
19 Every tree that doesn’t produce good fruit is cut down and thrown into the fire.
20 So you’ll recognize them by their fruit.
That is after you have given the new born sprout enough time to PRODUCE FRUIT.
And here is the Spiritual FRUIT or Lifestyle Characteristics you look for:
Galatians 5:22-23 (HCSB)
22 But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faith,
23 gentleness, self-control. Against such things there is no law.
Another tell tail Lifestyle Characteristic, is a divisive lifestyle, or addicted to arguing.
Titus 3:9-11 (HCSB)
9 But avoid foolish debates, genealogies, quarrels, and disputes about the law, for they are unprofitable and worthless.
10
Reject a divisive person after a first and second warning,
11 knowing that such a person is perverted and sins, being self-condemned.
I am not talking about a one time sin, a Lifestyle of acting the opposite of the good spiritual FRUIT, I just described; after you have giving the new born human spirit the time to Produce Fruit.
Now the BAD FRUIT is OBVIOUS:
Galatians 5:19-21 (HCSB)
19 Now the works of the flesh are obvious: sexual immorality, moral impurity, promiscuity,
20 idolatry, sorcery
[sorcerers were the drug deals of that day, calling the drugs, magic potions],
hatreds,
strife,
jealousy,
outbursts of anger, selfish ambitions,
dissensions,
factions,
21 envy, drunkenness, carousing, and anything similar. I tell you about these things in advance—as I told you before—that those who practice such things will not inherit the kingdom of God.
Notice, I used bold type for the most frequent BAD FRUIT, those are lifestyle characteristics, we have seen here in the past.
Matthew 7:17-20 (HCSB)
17
In the same way, every good tree produces good fruit, but a bad tree produces bad fruit.
18
A good tree can’t produce bad fruit; neither can a bad tree produce good fruit.
19
Every tree that doesn’t produce good fruit is cut down and thrown into the fire.
Matthew 7:20 (HCSB)
20 So you’ll recognize them by their fruit.