Titus 1:16

They profess that they know God, but in their works they deny him, being detestable and disobedient, and, as it respects every good work, rejected.

1 John 2:4

He that says, I know him, and keeps not his commandments, is a liar, and the truth is not in him.

1 Timothy 5:8

And if any one provides not for his own, and especially for those of his own house hold, he has denied the faith, and is worse than an unbeliever.

2 Timothy 3:5-8

having a form of godliness, but denying its power: from these also turn away.

Jude 1:4

For some men have stealthily entered in, who were long ago appointed to this condemnation; ungodly men, who pervert the grace of our God, and use it for lascivious purposes, and deny our only Sovereign and Lord, Jesus Christ.

Revelation 21:8

But the fearful, and the unbelieving, and the detestable, and murderers and lewd persons and sorcerers and idolaters and all liars, shall have their part in the lake that burns with fire and brimstone, which is the second death.

Romans 1:28

And as they refused to acknowledge God, God delivered them up to an undiscerning mind, to do detestable things;

Ephesians 5:6

Let no one deceive you with vain words: for on account of these things, the wrath of God comes upon the sons of disobedience.

Revelation 21:27

And there shall not enter it any thing unclean, or that does what is detestable, or that makes a lie: but those who are written in the Lamb's book of life.

1 Timothy 1:9

knowing this, that law is not made for a righteous man, but for the lawless and disobedient, for the ungodly and for sinners, for the unholy and for scorners, for murderers of fathers and murderers of mothers, for man-slayers,

Romans 2:18-24

and know his will, and approve what is excellent, being instructed by the law:

Treasury of Scripture Knowledge

Summary

They profess that they know God; but in works they deny him, being abominable, and disobedient, and unto every good work reprobate.

And disobedient

Bible References

Profess

Romans 2:18
and know his will, and approve what is excellent, being instructed by the law:
2 Timothy 3:5
having a form of godliness, but denying its power: from these also turn away.
Jude 1:4
For some men have stealthily entered in, who were long ago appointed to this condemnation; ungodly men, who pervert the grace of our God, and use it for lascivious purposes, and deny our only Sovereign and Lord, Jesus Christ.

Being

Revelation 21:8
But the fearful, and the unbelieving, and the detestable, and murderers and lewd persons and sorcerers and idolaters and all liars, shall have their part in the lake that burns with fire and brimstone, which is the second death.

And disobedient

Ephesians 5:6
Let no one deceive you with vain words: for on account of these things, the wrath of God comes upon the sons of disobedience.
1 Timothy 1:9
knowing this, that law is not made for a righteous man, but for the lawless and disobedient, for the ungodly and for sinners, for the unholy and for scorners, for murderers of fathers and murderers of mothers, for man-slayers,

Unto

Romans 1:28
And as they refused to acknowledge God, God delivered them up to an undiscerning mind, to do detestable things;
2 Timothy 3:8
Now as Jannes and Jambres withstood Moses, so these also will withstand the truth; men corrupt in mind, rejected as it respects the faith.