26For if we sin wilfully after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins,
27But a certain fearful looking for of judgment and fiery indignation, which shall devour the adversaries.
28He that despised Moses' law died without mercy under two or three witnesses:
29Of how much sorer punishment, suppose ye, shall he be thought worthy, who hath trodden under foot the Son of God, and hath counted the blood of the covenant, wherewith he was sanctified, an unholy thing, and hath done despite unto the Spirit of grace?
The Spirit clearly says that in later times some will abandon the faith and follow deceiving spirits and things taught by demons. (1 Tim 4:1)
As I urged you when I went into Macedonia, stay there in Ephesus so that you may command certain men not to teach false doctrines any longer nor to devote themselves to myths and endless genealogies. These promote controversies rather than God's work—which is by faith. The goal of this command is love, which comes from a pure heart and a good conscience and a sincere faith. Some have wandered away from these and turned to meaningless talk. (1 Tim 1:3-6).
1Ti 3:6 not a new convert, lest having been puffed up he may fall to a judgment of the devil;
Rev 20:10 And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are, and shall be tormented day and night forever and ever
Timothy, my son, I give you this instruction in keeping with the prophecies once made about you, so that by following them you may fight the good fight, holding on to faith and a good conscience. Some have rejected these and so have shipwrecked their faith. Among them are Hymenaeus and Alexander, whom I have handed over to Satan to be taught not to blaspheme. (1 Tim 1:18-20)
Watch your life and doctrine closely. Persevere in them, because if you do, you will save both yourself and your hearers. (1 Tim 4:16)
So I counsel younger widows to marry, to have children, to manage their homes and to give the enemy no opportunity for slander. Some have in fact already turned away to follow Satan. (1 Tim 5:14,15)
People who want to get rich fall into temptation and a trap and into many foolish and harmful desires that plunge men into ruin and destruction. For the love of money is a root of all kinds of evil. Some people, eager for money, have wandered from the faith and pierced themselves with many griefs. But you, man of God, flee from all this, and pursue righteousness, godliness, faith, love, endurance and gentleness. (1 Tim 6:9-11)
Timothy, guard what has been entrusted to your care. Turn away from godless chatter and the opposing ideas of what is falsely called knowledge, which some have professed and in so doing have wandered from the faith. Grace be with you. (1 Tim 6:20, 21)
Col 1:21 And you, that were sometime alienated and enemies in your mind by wicked works, yet now hath he reconciled
Col 1:22 In the body of his flesh through death, to present you holy and unblamable and unreprovable in his sight:
Col 1:23 If ye continue in the faith grounded and settled, and be not moved away from the hope of the gospel, which ye have heard, and which was preached to every creature which is under heaven; whereof I Paul am made a minister;
1Co 10:12 Wherefore let him that thinketh he standeth take heed lest he fall.
Php 1:10 That ye may approve things that are excellent; that ye may be sincere and without offense till the day of Christ;
Php 1:27 Only let your conversation be as it becometh the gospel of Christ: that whether I come and see you, or else be absent, I may hear of your affairs, that ye stand fast in one spirit, with one mind striving together for the faith of the gospel;
Php 1:28 And in nothing terrified by your adversaries: which is to them an evident token of perdition, but to you of salvation, and that of God.
Php 1:29 For unto you it is given in the behalf of Christ, not only to believe on him, but also to suffer for his sake;
Php 1:30 Having the same conflict which ye saw in me, and now hear to be in me.
Php 2:14 Do all things without murmurings and disputings:
Php 2:15 That ye may be blameless and harmless, the sons of God, without rebuke, in the midst of a crooked and perverse nation, among whom ye shine as lights in the world;
Php 2:16 Holding forth the word of life; that I may rejoice in the day of Christ, that I have not run in vain, neither labored in vain.
Php 3:18 (For many walk, of whom I have told you often, and now tell you even weeping, that they are the enemies of the cross of Christ:
Php 3:19 Whose end is destruction, whose God is their belly, and whose glory is in their shame, who mind earthly things.)
Php 4:1 Therefore, my brethren dearly beloved and longed for, my joy and crown, so stand fast in the Lord, my dearly beloved.
1Pe 1:5 Who are kept by the power of God through faith unto salvation ready to be revealed in the last time.
1Pe 1:7 That the trial of your faith, being much more precious than of gold thatperisheth, though it be tried with fire, might be found unto praise and honor and glory at the appearing of Jesus Christ:
1Pe 1:9 Receiving the end of your faith, even the salvation of your souls.
1Pe 1:13 Wherefore gird up the loins of your mind, be sober, and hope to the end for the grace that is to be brought unto you at the revelation of Jesus Christ;
1Pe 2:1 Wherefore laying aside all malice, and all guile, and hypocrisies, and envies, and all evil speakings,
1Pe 3:21 The like figure whereunto even baptism doth also now save us (not the putting away of the filth of the flesh, but the answer of a good conscience toward God,) by the resurrection of Jesus Christ:
1Pe 4:7 But the end of all things is at hand: be ye therefore sober, and watch unto prayer.
1Pe 4:12 Beloved, think it not strange concerning the fiery trial which is to try you, as though some strange thing happened unto you:
1Pe 5:9 Whom resist steadfast in the faith, knowing that the same afflictions are accomplished in your brethren that are in the world.
1Pe 5:10 But the God of all grace, who hath called us unto his eternal glory by Christ Jesus, after that ye have suffered a while, make you perfect, establish, strengthen, settle you.
2Pe 1:5 And beside this, giving all diligence, add to your faith virtue; and to virtue knowledge;
2Pe 1:6 And to knowledge temperance; and to temperance patience; and to patience godliness;
2Pe 1:7 And to godliness brotherly kindness; and to brotherly kindness charity.
2Pe 1:8 For if these things be in you, and abound, they make you that ye shall neither be barren nor unfruitful in the knowledge of our Lord Jesus Christ.
2Pe 1:9 But he that lacketh these things is blind, and cannot see afar off, and hath forgotten that he was purged from his old sins.
2Pe 1:10 Wherefore the rather, brethren, give diligence to make your calling and election sure: for if ye do these things, ye shall never fall:
2Pe 1:11 For so an entrance shall be ministered unto you abundantly into the everlasting kingdom of our Lord and Savior Jesus Christ.
Jas 1:12 Blessed is the man that endureth temptation: for when he is tried, he shall receive the crown of life, which the Lord hath promised to them that love him.
1Jn 2:23 Whosoever denieth the Son, the same hath not the Father: but he that acknowledgeth the Son hath the Father also.
1Jn 2:24 Let that therefore abide in you, which ye have heard from the beginning. If that which ye have heard from the beginning shall remain in you, ye also shall continue in the Son, and in the Father.
1Jn 2:25 And this is the promise that he hath promised us, even eternal life,
1Jn 3:11 For this is the message that ye heard from the beginning, that we should love one another.
1Jn 4:8 He that loveth not knoweth not God; for God is love.
1Jn 4:11 Beloved, if God so loved us, we ought also to love one another.
1Jn 4:17 Herein is our love made perfect, that we may have boldness in the day of judgment: because as he is, so are we in this world.
1Co 2:9 But as it is written, Eye hath not seen, nor ear heard, neither have entered into the heart of man, the things which God hath prepared for them that love him.
This is just the tip of the iceburg imo; to me the message is the same:
stand fast, be diligient, hold on to the faith that has been given to you; LOVE, and your reward will be great. Fall back from grace given to you, and deny Christ come in the flesh, deny HIM, and destruction is upon you.
I could go on, but me thinks Tony will disagree, and is a lot of time to go through it all.