Here is a translation into English of the Vulgate Epistle to the Laodiceans.
There's not much to it.
Let's take a look at some of the things it says, and things that might stand out as being conflicting and disharmonious with the inspired N.T. Canon of Scriptures.
the Vulgate Epistle to the Laodiceans1 Paul, an apostle not of men nor by man, but by Jesus Christ, unto the brethren that are at Laodicea.
(translated from Latin to English by M. R. James)
2 Grace be unto you and peace from God the Father and the Lord Jesus Christ.
3 I give thanks unto Christ in all my prayers, that ye continue in him and persevere in his works, looking for the promise at the day of judgement.
4 Neither do the vain talkings of some overset you, which creep in, that they may turn you away from the truth of the Gospel which is preached by me.
5 And now shall God cause that they that are of me shall continue ministering unto the increase of the truth of the Gospel and accomplishing goodness, and the work of salvation, even eternal life.
5 And now are my bonds seen of all men, which I suffer in Christ, wherein I rejoice and am glad.
7 And unto me this is for everlasting salvation, which also is brought about by your prayers, and the ministry of the Holy Ghost, whether by life or by death.
8 For verily to me life is in Christ, and to die is joy.
9 And unto him (or And also) shall he work his mercy in you that ye may have the same love, and be of one mind.
10 Therefore, dearly beloved, as ye have heard in my presence so hold fast and work in the fear of God, and it shall be unto you for life eternal.
11 For it is God that worketh in you.
12 And do ye without afterthought whatsoever ye do.
13 And for the rest, dearly beloved, rejoice in Christ, and beware of them that are filthy in lucre.
14 Let all your petitions be made openly before God, and be ye steadfast in the mind of Christ.
15 And what things are sound and true and sober and just and to be loved, do ye.
16 And what ye have heard and received, keep fast in your heart.
17 And peace shall be unto you.
18 The saints salute you.
19 The grace of the Lord Jesus be with your spirit.
20 And cause this epistle to be read unto them of Colossae, and the epistle of the Colossians to be read unto you.
Compared with John's Inspired Letter to the Laodiceans.
John's Inspired Letter to the Laodiceans 3:14 And unto the angel of the church of the Laodiceans write; These things saith the Amen, the faithful and true witness, the beginning of the creation of God;
3:15 I know thy works, that thou art neither cold nor hot: I would thou wert cold or hot.
3:16 So then because thou art lukewarm, and neither cold nor hot, I will spue thee out of my mouth.
3:17 Because thou sayest, I am rich, and increased with goods, and have need of nothing; and knowest not that thou art wretched, and miserable, and poor, and blind, and naked:
3:18 I counsel thee to buy of me gold tried in the fire, that thou mayest be rich; and white raiment, that thou mayest be clothed, and that the shame of thy nakedness do not appear; and anoint thine eyes with eyesalve, that thou mayest see.
3:19 As many as I love, I rebuke and chasten: be zealous therefore, and repent.
3:20 Behold, I stand at the door, and knock: if any man hear my voice, and open the door, I will come in to him, and will sup with him, and he with me.
3:21 To him that overcometh will I grant to sit with me in my throne, even as I also overcame, and am set down with my Father in his throne.
3:22 He that hath an ear, let him hear what the Spirit saith unto the churches.
And to add some more scripture to the mix; all other N.T. references to Laodicea (only found in Colossians)....
Paul's Inspired Epistle to the Colossians 1:27 "To whom God would make known what is the riches of the glory of this mystery among the Gentiles; which is Christ in you, the hope of glory: Whom we preach, warning every man, and teaching every man in all wisdom; that we may present every man perfect in Christ Jesus: Whereunto I also labour, striving according to his working, which worketh in me mightily. For I would that ye knew what great conflict I have for you, and for them at Laodicea, and for as many as have not seen my face in the flesh; That their hearts might be comforted, being knit together in love, and unto all riches of the full assurance of understanding, to the acknowledgement of the mystery of God, and of the Father, and of Christ; In whom are hid all the treasures of wisdom and knowledge. And this I say, lest any man should beguile you with enticing words".
4:7 All my state shall Tychicus declare unto you, who is a beloved brother, and a faithful minister and fellowservant in the Lord: Whom I have sent unto you for the same purpose, that he might know your estate, and comfort your hearts; With Onesimus, a faithful and beloved brother, who is one of you. They shall make known unto you all things which are done here. Aristarchus my fellowprisoner saluteth you, and Marcus, sister's son to Barnabas, (touching whom ye received commandments: if he come unto you, receive him) ; And Jesus, which is called Justus, who are of the circumcision. These only are my fellowworkers unto the kingdom of God, which have been a comfort unto me. Epaphras, who is one of you, a servant of Christ, saluteth you, always labouring fervently for you in prayers, that ye may stand perfect and complete in all the will of God. For I bear him record, that he hath a great zeal for you, and them that are in Laodicea, and them in Hierapolis. Luke, the beloved physician, and Demas, greet you. Salute the brethren which are in Laodicea, and Nymphas, and the church which is in his house. And when this epistle is read among you, cause that it be read also in the church of the Laodiceans; and that ye likewise read the epistle from Laodicea. And say to Archippus, Take heed to the ministry which thou hast received in the Lord, that thou fulfil it. The salutation by the hand of me Paul. Remember my bonds. Grace be with you. Amen."