These are not pointless warnings for "nominal" Christians. Holding fast is proof of genuine conversion. Authentic faith "holds fast" and is not some shallow, temporary belief that has no root, produces no fruit and withers away.
Nobody is teaching a license to sin. Hyper grace (continuously live like the devil, yet still saved) is one extreme and type 2 works salvation (which many in the NOSAS camp represent) is the other extreme.
Unlike saving belief, temporary, shallow belief is
not rooted in a regenerate heart. How can
no depth of earth, no root, no moisture, no fruit, represent saving belief? Also the same Greek word for believe "pisteuo" is used in James 2:19, in which we read that the demons believe"mental assent" that "there is one God," but they are not saved.
John has portrayed people who "believe" (at least to some extent) but are clearly not saved. There is a stage in the progress of belief in Jesus that "falls short of firmly rooted, consummated belief which results in salvation." As we see in John 2:23-25, in which their belief was
superficial in nature and Jesus would not entrust/commit Himself to them.
Also, in John 8:31-59, where the Jews who were said to have "believed in him" turn out to be
slaves to sin, indifferent to the words of Jesus’, children of the devil, liars, accused Jesus of having a demon and were guilty of setting out to stone and kill the one they have professed to believe in. We can see at best, these Jews believed in Him (based on their own misconceptions and expectations) of Jesus, yet upon gaining further knowledge about Jesus through His words, we see they did not truly "believe unto salvation" and become children of God (John 1:12; 3:18) but were instead children of the devil.
The word "if" in Colossians 1:23 is not ean, an unfulfilled, hypothetical condition used with the subjunctive mode, presenting the possibility of a future realization, but ei with the indicative, having here the idea of "assuming that you continue in the faith."
Continuance would show that a person's faith is firmly established in the hope of the gospel and they really HAVE BEEN reconciled. The form of this phrase in Greek (using the Greek particle ei and the indicative mood of the verb epimenō) indicates that Paul fully expects that the Colossian believers will continue in the faith; no doubt is expressed, yet what about "nominal" Christians whose shallow, temporary belief withers away?
It's only natural that Paul would speak this way, for he is addressing groups of people who profess to be Christians, without being able to infallibly know the actual state of every person's heart. How can Paul avoid giving them false assurance they will be saved when in fact they may not? Paul knows that faith which is firmly grounded and established in the gospel from the start will continue.
Those who continue in the faith show thereby that they are genuine believers. But those who do not continue show that their shallow faith was not grounded in the first place.
The Greek word for "repent" is "metanoia" (noun) and "matanoeo" (verb) you see as defined in the Strongs #3340, 3341: to think differently or afterwards, reconsider. After thought, change of mind. Repentance, metanoia, focuses on changing one's mind about his previous concept of God (as in Acts 17:30) and disbelief in God or false beliefs (polytheism and idolatry) about God (see 1 Thessalonians 1:9).
On the other hand, this change of mind, focuses on the new direction that change about God must ultimately take, namely, trusting in Jesus Christ as the ALL-sufficient means of our salvation.
The Bible also tells us that true repentance will
result in a change of actions. Acts 26:20 declares, "I preached that they should repent and turn to God and
prove their repentance by their deeds." This is the
fruit of repentance (Matthew 3:8), not the essence of repentance (change of mind). Certain people confuse the "fruit of repentance" with the "essence of repentance" (and also do the same thing with faith) and end up teaching salvation by works.
I gave you no disagree and I was not rude, just a friendly rebuttal.
Psalm 37:28 - For the Lord loves justice, And does not forsake His saints; They are
preserved forever, But the descendants of the wicked shall be cut off.
John 10:27 - My sheep hear My voice, and I know them, and they follow Me. 28 And
I give them eternal life, and they shall never perish; neither shall anyone snatch them out of My hand.
Romans 8:30 - Moreover whom He predestined, these He also called; whom He called, these He also justified;
and whom He justified, these He also glorified.
Ephesians 1:13 - In Him you also trusted, after you heard the word of truth, the
gospel of your salvation; in whom also, having
believed, you were
sealed with the Holy Spirit of promise, 14 who is the
guarantee of our inheritance until the redemption of the purchased possession, to the praise of His glory. Believers are
sealed unto the day of redemption. (Ephesians 4:30)