Hebrews 6:4

For it is impossible, in the case of those who have once for all been enlightened, and have tasted the sweetness of the heavenly gift, and have been made partakers of the Holy Spirit,

Galatians 3:2

Answer me this one question, "Is it on the ground of your obedience to the Law that you received the Spirit, or is it because, when you heard, you believed?"

Ephesians 2:8

For it is by grace that you have been saved through faith; and that not of yourselves. It is God's gift, and is not on the ground of merit--

Hebrews 10:32

But continually recall to mind the days now past, when on being first enlightened you went through a great conflict and many sufferings.

John 4:10

"If you had known God's free gift," replied Jesus, "and who it is that said to you, 'Give me some water,' you would have asked Him, and He would have given you living water."

Hebrews 2:4

while God corroborated their testimony by signs and marvels and various miracles, and by gifts of the Holy Spirit distributed in accordance with His own will.

Galatians 3:5

He who gives you His Spirit and works miracles among you--does He do so on the ground of your obedience to the Law, or is it the result of your having heard and believed:

2 Timothy 2:25

He must speak in a gentle tone when correcting the errors of opponents, in the hope that God will at last give them repentance, for them to come to a full knowledge of the truth

Hebrews 10:26-29

For if we wilfully persist in sin after having received the full knowledge of the truth, there no longer remains in reserve any other sacrifice for sins.

2 Peter 2:20-22

For if, after escaping from the pollutions of the world through a full knowledge of our Lord and Saviour Jesus Christ, people are once more entangled in these pollutions and are overcome, their last state has become worse than their first.

1 John 5:16

If any one sees a brother man committing a sin which is not unto death, he shall ask and God shall give him life--for those who do not sin unto death. There is such a thing as sin unto death; for that I do not bid him make request.

Matthew 5:13

"*You* are the salt of the earth; but if salt has become tasteless, in what way can it regain its saltness? It is no longer good for anything but to be thrown away and trodden on by the passers by.

Matthew 7:21-22

"Not every one who says to me, 'Master, Master,' will enter the Kingdom of the Heavens, but only those who are obedient to my Father who is in Heaven.

Matthew 12:31-32

This is why I tell you that men may find forgiveness for every other sin and impious word, but that for impious speaking against the Holy Spirit they shall find no forgiveness.

Matthew 12:45

Then he goes and brings back with him seven other spirits more wicked than himself, and they come in and dwell there; and in the end that man's condition becomes worse than it was at first. So will it be also with the present wicked generation."

Luke 10:19-20

"I have given you power to tread serpents and scorpions underfoot, and to trample on all the power of the Enemy; and in no case shall anything do you harm.

Luke 11:24-26

"When a foul spirit has left a man, it roams about in the Desert, seeking a resting-place; but, unable to find any, it says, 'I will return to the house I have left;"

John 3:27

"A man cannot obtain anything," replied John, "unless it has been granted to him from Heaven.

John 6:32

"In most solemn truth I tell you," replied Jesus, "that Moses did not give you the bread out of Heaven, but my Father is giving you the bread--the true bread--out of Heaven.

John 15:6

If any one does not continue in me, he is like the unfruitful branch which is at once thrown away and then withers up. Such branches they gather up and throw into the fire and they are burned.

Acts 8:20

"Perish your money and yourself," replied Peter, "because you have imagined that you can obtain God's free gift with money!

Acts 10:45

And all the Jewish believers who had come with Peter were astonished that on the Gentiles also the gift of the Holy Spirit was poured out.

1 Corinthians 13:1-2

If I can speak with the tongues of men and of angels, but am destitute of Love, I have but become a loud-sounding trumpet or a clanging cymbal.

Ephesians 3:7

in which I have been appointed to serve, in virtue of the work which God, in the exercise of His power within me, has graciously entrusted to me.

Acts 11:17

"If therefore God gave them the same gift as He gave us when we first believed on the Lord Jesus Christ, why, who was I to be able to thwart God?"

Acts 15:8

And God, who knows all hearts, gave His testimony in their favour by bestowing the Holy Spirit on them just as He did on us;

Romans 1:11

For I am longing to see you, in order to convey to you some spiritual help, so that you may be strengthened;

Ephesians 4:7

Yet to each of us individually grace was given, measured out with the munificence of Christ.

1 Timothy 4:14

Do not be careless about the gifts with which you are endowed, which were conferred on you through a divine revelation when the hands of the elders were placed upon you.

2 Timothy 4:14

Alexander the metal-worker showed bitter hostility towards me: the Lord will requite him according to his doings.

Hebrews 12:15-17

Be carefully on your guard lest there be any one who falls back from the grace of God; lest any root bearing bitter fruit spring up and cause trouble among you, and through it the whole brotherhood be defiled;

James 1:17-18

Every gift which is good, and every perfect boon, is from above, and comes down from the Father, who is the source of all Light. In Him there is no variation nor the slightest suggestion of change.

Treasury of Scripture Knowledge

Bible References

It is

Hebrews 10:26
For if we wilfully persist in sin after having received the full knowledge of the truth, there no longer remains in reserve any other sacrifice for sins.
Hebrews 12:15
Be carefully on your guard lest there be any one who falls back from the grace of God; lest any root bearing bitter fruit spring up and cause trouble among you, and through it the whole brotherhood be defiled;
Matthew 5:13
"*You* are the salt of the earth; but if salt has become tasteless, in what way can it regain its saltness? It is no longer good for anything but to be thrown away and trodden on by the passers by.
Matthew 12:31
This is why I tell you that men may find forgiveness for every other sin and impious word, but that for impious speaking against the Holy Spirit they shall find no forgiveness.
Luke 11:24
"When a foul spirit has left a man, it roams about in the Desert, seeking a resting-place; but, unable to find any, it says, 'I will return to the house I have left;"
John 15:6
If any one does not continue in me, he is like the unfruitful branch which is at once thrown away and then withers up. Such branches they gather up and throw into the fire and they are burned.
2 Timothy 2:25
He must speak in a gentle tone when correcting the errors of opponents, in the hope that God will at last give them repentance, for them to come to a full knowledge of the truth
2 Timothy 4:14
Alexander the metal-worker showed bitter hostility towards me: the Lord will requite him according to his doings.
2 Peter 2:20
For if, after escaping from the pollutions of the world through a full knowledge of our Lord and Saviour Jesus Christ, people are once more entangled in these pollutions and are overcome, their last state has become worse than their first.
1 John 5:16
If any one sees a brother man committing a sin which is not unto death, he shall ask and God shall give him life--for those who do not sin unto death. There is such a thing as sin unto death; for that I do not bid him make request.

Were once

Hebrews 10:32
But continually recall to mind the days now past, when on being first enlightened you went through a great conflict and many sufferings.

And have

Matthew 7:21
"Not every one who says to me, 'Master, Master,' will enter the Kingdom of the Heavens, but only those who are obedient to my Father who is in Heaven.
Luke 10:19
"I have given you power to tread serpents and scorpions underfoot, and to trample on all the power of the Enemy; and in no case shall anything do you harm.
John 3:27
"A man cannot obtain anything," replied John, "unless it has been granted to him from Heaven.
John 4:10
"If you had known God's free gift," replied Jesus, "and who it is that said to you, 'Give me some water,' you would have asked Him, and He would have given you living water."
John 6:32
"In most solemn truth I tell you," replied Jesus, "that Moses did not give you the bread out of Heaven, but my Father is giving you the bread--the true bread--out of Heaven.
Acts 8:20
"Perish your money and yourself," replied Peter, "because you have imagined that you can obtain God's free gift with money!
Acts 10:45
And all the Jewish believers who had come with Peter were astonished that on the Gentiles also the gift of the Holy Spirit was poured out.
Acts 11:17
"If therefore God gave them the same gift as He gave us when we first believed on the Lord Jesus Christ, why, who was I to be able to thwart God?"
Romans 1:11
For I am longing to see you, in order to convey to you some spiritual help, so that you may be strengthened;
1 Corinthians 13:1
If I can speak with the tongues of men and of angels, but am destitute of Love, I have but become a loud-sounding trumpet or a clanging cymbal.
Ephesians 2:8
For it is by grace that you have been saved through faith; and that not of yourselves. It is God's gift, and is not on the ground of merit--
Ephesians 3:7
in which I have been appointed to serve, in virtue of the work which God, in the exercise of His power within me, has graciously entrusted to me.
Ephesians 4:7
Yet to each of us individually grace was given, measured out with the munificence of Christ.
1 Timothy 4:14
Do not be careless about the gifts with which you are endowed, which were conferred on you through a divine revelation when the hands of the elders were placed upon you.
James 1:17
Every gift which is good, and every perfect boon, is from above, and comes down from the Father, who is the source of all Light. In Him there is no variation nor the slightest suggestion of change.

Partakers

Hebrews 2:4
while God corroborated their testimony by signs and marvels and various miracles, and by gifts of the Holy Spirit distributed in accordance with His own will.
Acts 15:8
And God, who knows all hearts, gave His testimony in their favour by bestowing the Holy Spirit on them just as He did on us;
Galatians 3:2
Answer me this one question, "Is it on the ground of your obedience to the Law that you received the Spirit, or is it because, when you heard, you believed?"

General references

Mark 3:28
In solemn truth I tell you that all their sins may be pardoned to the sons of men, and all their blasphemies, however they may have blasphemed;
Luke 12:10
"Moreover every one who shall speak against the Son of Man, may obtain forgiveness; but he who blasphemes the Holy Spirit will never obtain forgiveness.
Luke 14:30
saying, 'This man began to build, but could not finish.'
Jude 1:22
Some, when they argue with you, you must endeavor to convince;