Colossians 1:23

If ye continue in the faith
In the doctrine of faith which they had received and embraced; and in the grace of faith, and the exercise of it which was implanted in them; and in the profession of faith which they had made: not that the virtue and efficacy of Christ's blood, sufferings, and death, and reconciliation of their persons to God thereby, depended upon their faith, and abiding in it; but that faith and continuance in it were necessary means of their presentation in unblemished holiness and righteousness; for if they had not faith, or did not abide in it or if the good work of grace was not wrought upon their souls, and that performed until the day of Christ, they could not be presented holy and blameless: this shows the necessity of the saints' final perseverance in faith and holiness, and is mentioned with this view, to put them upon a concern about it, and to make use of all means, under divine grace, to enjoy it; and nothing could more strongly incline and move unto it, than the blessed effect of Christ's death, reconciliation and the end of it, to present the reconciled ones blameless; in order to which it is necessary they should hold on and out to the end: hence the Ethiopic version reads the words, not as a condition, but as an exhortation enforced by what goes before; "therefore be ye established in the faith": it follows,

grounded and settled;
not on the sandy foundation of man's own righteousness, and peace made by his own performances; but upon the foundation and rock, Christ, against which the gates of hell cannot prevail; and so shall never finally and totally fall away, being rooted and built up in him, and established in the faith of him, in the doctrines of faith, respecting peace by his blood, justification by his righteousness, and life by his death; and so continue steadfast and immovable, always abounding in his work:

and [be] not moved away from the hope of the Gospel;
the hope of eternal life and happiness, which as set before us in the Gospel; which that gives a good and solid ground and foundation of, in the person, blood, and righteousness of Christ; and is the instrumental means, in the hand of the Spirit, of begetting to it, and of encouraging and increasing it: the law gives no hopes of eternal life to a poor sinner; it works wrath, and ministers death; there is nothing but a fearful looking for of judgment by it; but the Gospel encourages to hope in the Lord, from the consideration of rich mercy and plenteous redemption in him; and this hope of the Gospel is an anchor of the soul, sure and steadfast, and not to be let go; this confidence and rejoicing of the hope is to be kept firm unto the end:

which ye have heard;
that is, which Gospel they had heard from Epaphras their faithful minister, and that not only externally, but internally; they had heard it and believed it, and it had brought forth fruit in them; for it came to them not in word only, but in power; which is said in commendation of it, and to engage them to continue in it, and abide by it; as is also what follows:

[and] which was preached to every creature which is under heaven;
and therefore since it was the same which was everywhere preached, they might depend upon the truth of it, should have the greater value for it, and by no means relinquish it. This must be understood not of every individual creature, even human and rational, that was then, or had been in, the world; but that it had been, and was preached far and near, in all places all over the world, to the Gentiles as well as to the Jews; who are sometimes styled "every creature", "the creature", "the whole creation", "all men" see ( Mark 16:15 ) ( Romans 8:19-22 ) ( Titus 2:11 ) ; and of this, the first preaching of the Gospel by Peter after our Lord's resurrection, was an emblem and pledge, ( Acts 2:14-36 ) ; and some time after that, the sound of all the apostles went into all the earth, and their words to the end of the world:

whereof I Paul am made a minister;
by Jesus Christ, who appeared unto him, and called, qualified, and sent him forth as such; and this is mentioned to encourage the Colossians to abide by the truths of the Gospel, since what they had heard and received were what were everywhere preached by the faithful ministers of the word; and particularly by the apostle, who was ordained to be a teacher and preacher of it to the Gentiles. The Alexandrian copy reads, "a preacher and an apostle, and a minister"; see ( 1 Timothy 2:7 ) .