Here’s something for you to consider.
I praise God for all things, and I’m thankful that He teaches me.
Have you ever been stumped (like I have) by some passages of scripture?
(Like the ones in blue below)?

Romans 10

1 Brethren, my heart’s desire and prayer to God for Israel is, that they might be saved.

2 For I bear them record that they have a zeal of God, but not according to knowledge.

3 For they being ignorant of God’s righteousness, and going about to establish their own righteousness, have not submitted themselves unto the righteousness of God.

4 For Christ is the end of the law for righteousness to every one that believeth.

5 For Moses describeth the righteousness which is of the law, That the man which doeth those things shall live by them.

6 But the righteousness which is of faith speaketh on this wise, Say not in thine heart, Who shall ascend into heaven? (that is, to bring Christ down from above: )

7 Or, Who shall descend into the deep? (that is, to bring up Christ again from the dead.)

8 But what saith it? The word is nigh thee, even in thy mouth, and in thy heart: that is, the word of faith, which we preach;

9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.

10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.

11 For the scripture saith, Whosoever believeth on him shall not be ashamed.

12 For there is no difference between the Jew and the Greek: for the same Lord over all is rich unto all that call upon him.

13 For whosoever shall call upon the name of the Lord shall be saved. “

I used to think that that was speaking about forbidding the analysis of someone’s profession of being a Christian.

But God taught me what that means.

Incidentally, if that were teaching that we’re not to assess someone’s profession of being a Christian,
then how could we Christians identify false brethren, false Christs, and false prophets?

I mean, to believe that someone is a false brethren, or a false prophet, … you have to believe that their claim of being a Christian is false don’t you?

2 Corinthians 11:26 | View whole chapter | See verse in context
In journeyings often, in perils of waters, in perils of robbers, in perils by mine own countrymen, in perils by the heathen, in perils in the city, in perils in the wilderness, in perils in the sea, in perils among false brethren;
Galatians 2:4 | View whole chapter | See verse in context
And that because of false brethren unawares brought in, who came in privily to spy out our liberty which we have in Christ Jesus, that they might bring us into bondage:
Mark 13:22 | View whole chapter | See verse in context
For false Christs and false prophets shall rise, and shall shew signs and wonders, to seduce, if it were possible, even the elect.

And what sense would the following biblical directive make if we embraced everyone’s claim of being a Christian who claimed to be a Christian?

2 Timothy 3.1-5

1 “This know also, that in the last days perilous times shall come.
2 For men shall be lovers of their own selves, covetous, boasters, proud, blasphemers, disobedient to parents, unthankful, unholy,
3 Without natural affection, trucebreakers, false accusers, incontinent, fierce, despisers of those that are good,
4 Traitors, heady, highminded, lovers of pleasures more than lovers of God;
5 Having a form of godliness, but denying the power thereof: from such turn away.

Well the answer to that text from Romans chapter 10 in blue is simple.
That’s not not talking about forbidding a Christian to assess someone‘s profession of Christianity.

Its context, that’s talking about the folly of Israel living by the law for righteousness, and still looking for the Messiah to come. (Because Christ has already come and lived among them). Therefore to look for Him to ascend into heaven, or to descend into the deep is folly, (because He’s already been here & done that). And He’s near unto you right now, so believe on Him, & call upon Him to save you.

Now go back and read those verses and see if they’re more clear to you.

And finally, I want to make it clear that I’m not recommending that anyone go around acting as if we’re the judge of the final outcome of people’s souls or anything like that. I’m merely talking about the Christian using their God -given discernment in assessing what’s being presented to you right now.
All glory to the risen Lord Jesus Christ, and no glory to us whatsoever.