Jude 1:4

For certain persons have sneaked in -- their doom was written down long ago -- godless persons, who turn the favor of our God into an excuse for licentiousness, and disown our only Master and Lord, Jesus Christ.

Galatians 2:4

they did not try it even for the sake of the false brothers who had been smuggled in, who stole in to spy out the freedom we enjoy in Christ Jesus, so as to make us slaves again.

1 Peter 2:8

and: "A stone for them to stumble over and a rock to trip them up." They keep on stumbling over the message, because they are disobedient to it, and this is their appointed doom.

1 John 2:22

Who is the notorious liar, if it is not the man who denies that Jesus is the Christ? He is the real Antichrist, the man who disowns the Father and the Son.

2 Timothy 3:6

For some of them practice going into people's houses and capturing weak and silly women who are overwhelmed with the weight of their sins, who are easily led about by all sorts of evil impulses,

Matthew 13:25

But while the world was sleeping, his enemy came and sowed wild wheat seed in the midst of the good seed, and went away.

John 17:3

Now eternal life means knowing you as the only true God and knowing Jesus your messenger as Christ.

Acts 11:23

When he reached there and saw the spiritual blessing God had given them, he was delighted, and continuously encouraged them all with hearty purpose to continue to be devoted to the Lord;

Acts 15:24

As we have heard that some of our number have disturbed you by their teaching, by continuing to unsettle your minds,

Romans 6:1-2

What is our conclusion then? Are we to continue to sin for His unmerited favor to multiply?

Romans 9:21-22

Has not the potter the right with his clay to make of the same lump one vessel for ornamental purposes, another for degrading service?

Galatians 5:13

For you, brothers, were called to freedom; only you must not let your freedom be an excuse for the gratification of your lower nature, but in love be slaves to one another.

Ephesians 4:14

so that we may not be babies any longer, or like sailors tossed about and driven around by every wind of doctrine, by the trickery of men through their cunning in inventing new methods of error.

1 Timothy 6:15-16

which will be brought about in His own time by the blessed, only Sovereign, the King of kings, the Lord of lords,

Titus 1:15-16

To the pure everything is pure, but to the impure and unbelieving nothing is pure, but their very minds and consciences are impure.

Titus 2:11-12

For God's favor has appeared with its offer of salvation to all mankind,

Hebrews 12:15-16

Continue to look after one another, that no one fails to gain God's spiritual blessing; or some evil like a bitter root may spring up and trouble you, and many of you be contaminated by it --

1 Peter 2:16

Live like free men, only do not make your freedom a pretext for doing evil, but live like slaves of God.

1 Peter 4:18

And if it is hard for the upright man to be saved, what will become of the godless and sinful?

2 Peter 2:1-3

Now there were false prophets among the people, just as there will be false teachers among you too, who will insidiously introduce destructive heresies and deny the Master who has bought them, thus bringing on themselves swift destruction.

2 Peter 2:5-6

and if He did not spare the ancient world, but preserved Noah, a preacher of righteousness, and seven others when He brought the flood upon the world of godless people;

2 Peter 2:10

especially those who satisfy their lower nature by indulging in its evil passions which defile them, and who despise authority. Daring, headstrong men! They do not tremble when they abuse persons of majesty,

2 Peter 2:18-22

For by uttering arrogant nonsense, through base desires of the lower nature, they entice into immorality men who are just escaping from those who live in error,

2 Peter 3:7

But by the same command the present heavens and earth are stored up for fire and are kept for the day when godless men are to be doomed and destroyed.

Jude 1:15

to execute judgment upon all, to convict all the godless of their godless deeds which in their godlessness they have committed, and of all the harsh things that godless sinners have said against Him."

Revelation 15:4

Who will not fear and glorify your name, O Lord? For you alone are holy. All the nations will come and worship you, because the justice of your sentences has now been shown."

Treasury of Scripture Knowledge

Summary

For there are certain men crept in unawares, who were before of old ordained to this condemnation, ungodly men, turning the grace of our God into lasciviousness, and denying the only Lord God, and our Lord Jesus Christ.

Bible References

Crept

Matthew 13:25
But while the world was sleeping, his enemy came and sowed wild wheat seed in the midst of the good seed, and went away.
Acts 15:24
As we have heard that some of our number have disturbed you by their teaching, by continuing to unsettle your minds,
Galatians 2:4
they did not try it even for the sake of the false brothers who had been smuggled in, who stole in to spy out the freedom we enjoy in Christ Jesus, so as to make us slaves again.
Ephesians 4:14
so that we may not be babies any longer, or like sailors tossed about and driven around by every wind of doctrine, by the trickery of men through their cunning in inventing new methods of error.
2 Timothy 3:6
For some of them practice going into people's houses and capturing weak and silly women who are overwhelmed with the weight of their sins, who are easily led about by all sorts of evil impulses,
2 Peter 2:1
Now there were false prophets among the people, just as there will be false teachers among you too, who will insidiously introduce destructive heresies and deny the Master who has bought them, thus bringing on themselves swift destruction.

Who

Romans 9:21
Has not the potter the right with his clay to make of the same lump one vessel for ornamental purposes, another for degrading service?
1 Peter 2:8
and: "A stone for them to stumble over and a rock to trip them up." They keep on stumbling over the message, because they are disobedient to it, and this is their appointed doom.
2 Peter 2:3
In their greed they will exploit you with messages manufactured by themselves. From of old their condemnation has not been idle and their destruction has not been slumbering.

Turning

Romans 6:1
What is our conclusion then? Are we to continue to sin for His unmerited favor to multiply?
Galatians 5:13
For you, brothers, were called to freedom; only you must not let your freedom be an excuse for the gratification of your lower nature, but in love be slaves to one another.
Titus 2:11
For God's favor has appeared with its offer of salvation to all mankind,
Hebrews 12:15
Continue to look after one another, that no one fails to gain God's spiritual blessing; or some evil like a bitter root may spring up and trouble you, and many of you be contaminated by it --
1 Peter 2:16
Live like free men, only do not make your freedom a pretext for doing evil, but live like slaves of God.
2 Peter 2:10
especially those who satisfy their lower nature by indulging in its evil passions which defile them, and who despise authority. Daring, headstrong men! They do not tremble when they abuse persons of majesty,

Denying

Titus 1:15
To the pure everything is pure, but to the impure and unbelieving nothing is pure, but their very minds and consciences are impure.
2 Peter 2:1
Now there were false prophets among the people, just as there will be false teachers among you too, who will insidiously introduce destructive heresies and deny the Master who has bought them, thus bringing on themselves swift destruction.
1 John 2:22
Who is the notorious liar, if it is not the man who denies that Jesus is the Christ? He is the real Antichrist, the man who disowns the Father and the Son.

General references

Matthew 24:11
Many false prophets will appear and mislead many people;
1 Timothy 5:15
For some widows have already turned aside to follow Satan.
James 2:19
Do you believe in one God? Very well; the demons, too, believe that, and shudder.