I am personally offended (not at anyone in particular, honestly) at this notion…
It is also considered pious by many Roman Catholics to doubt their own salvation.
It is not understanding, and quite very possibly due to our own lack of orthodox faith as individuals, the difference between being absolutely assured that when we die at some point in the distant future we will be in the same confident state which we are in right now, if we have in fact devoted ourselves to the Deposit of Faith and received reconciliation for the times we have denied the faith, whether in our hearts or deeds (not that they can be seperated at our judgment).
There is also a Grace we should all (Christianity) find as our common ground. That God`s grace has given us all that we can do to attain Forgiveness, Justification, Good Works, Heaven, and consequent merit.
Dear Brothers and Sisters,
Lent is a time of renewal for the whole Church, for each communities and every believer. Above all it is a “time of grace” (2 Cor6:2). God does not ask of us anything that he himself has not first given us. “We love because he first has loved us” (1 Jn 4:19).
Papa Franciso 2015 Lent
So while our Justification is a free gift and we bring nothing of ourselves to receive. It also demands letting go of what we have, and suffering with Christ.
12 So then, brethren, we are debtors, not to the flesh, to live according to the flesh— 13 for if you live according to the flesh you will die, but if by the Spirit you put to death the deeds of the body you will live. 14** For all who are led by the Spirit of God are sons of God. 15 For you did not receive the spirit of slavery to fall back into fear, but you have received the spirit of sonship**. When we cry, “Abba! Father!” 16 it is the Spirit himself bearing witness with our spirit that we are children of God, 17 and if children, then heirs, heirs of God and fellow heirs with Christ, provided we suffer with him in order that we may also be glorified with him.
Or this strong admonission from Paul to Timothy
7 Command this, so that they may be without reproach. 8 If any one does not provide for his relatives, and especially for his own family, he has disowned the faith and is worse than an unbeliever.
This is the relationship Faith has with Works which the Church upholds. It is not that works are a cause of Christ
s merited grace, or even that our faith alone is a cause of Christs merited grace. But that the two are inseperable in being saved.
So while there is a moment of conversion of heart in all who accept God, it is not necessarily invincible from disowning the faith. Because to disown the faith means you have to have first owned the faith.
And to further capitalize on Isaiah`s point…
7 He said therefore to the multitudes that came out to be baptized by him, “You brood of vipers!** Who warned you to flee from the wrath to come? 8 Bear fruits that befit repentance, and do not begin to say to yourselves, ‘We have Abraham as our father’; for I tell you, God is able from these stones to raise up children to Abraham. 9 Even now the axe is laid to the root of the trees; every tree therefore that does not bear good fruit is cut down and thrown into the fire.”
19 “Wherefore, O King Agrippa, I was not disobedient to the heavenly vision, 20 but declared first to those at Damascus, then at Jerusalem and throughout all the country of Judea, and also to the Gentiles, that they should repent and turn to God and perform deeds worthy of their repentance.**