Sorry, let me reword that. It’s to all Catholics.....
Let me throw this out out for consideration.
Just what is it about Christians being confident of their salvation and sure of their security in Christ that bugs Catholics so much?
Actually, while chastening Protestants for interpreting Scripture apart from Rome, by “private revelation” (2Pt. 1:20, but which interpretation itself is wrong, as this text is not speaking about interpreting Scripture apart from an infallible magisterium, but about how prophecy was written [cf. 1Pt. 1:11]), Rome “infallibly” teaches that Catholics can know by “special revelation” that they are assuredly in the number of the predestinate [Trent, The Sixth Session, CHAPTER XII, http://history.hanover.edu/early/trent/ct06.html]
Meanwhile, as the Abrahamic type faith that is counted for righteousness is a kind of faith that characteristically manifests things which accompany salvation, (Heb. 6:9; Jn. 10:27,28; 2Ths. 1:3,4) there are verses which warn of believers denying the faith, (1Tim. 5:8,11-13; 2Tim. 2:12; 2Pt. 2:1) and casting away faith (by doctrine or in deeds) and forfeiting what is appropriated, drawing back into perdition, (Gal. 5:1-4; Heb. 10:19-39) and the necessity of continuing in the faith, which works obedience, by God’s grace. (Heb. 3:6,14; 5:9; 1Cor. 15:2)