Titus 1:16

they make a profession of knowing God; but in fact they deny him, being execrably incredulous, and utter strangers to all virtue.

1 John 2:4

he that says, he knows him, and does not keep his commandments, is a lyar, and an enemy to the truth:

1 Timothy 5:8

he that takes no care of his relations, especially those of his own family, has renounc'd the faith and is worse than an infidel.

2 Timothy 3:5-8

of which they wear the appearance, but disclaim its influence. have no intercourse with such.

Jude 1:4

For certain men have insinuated themselves among you, who were formerly proscrib'd to be punish'd; impious men, who pervert the divine favour to licentiousness, and renounce their only master, and Jesus Christ our Lord.

Revelation 21:8

but the fearful, and incredulous, the abominable, the murderer, the licentious, the poisoner, the idolater, and every lyar shall have their part in the lake which burns with fire and brimstone: this is the second death."

Romans 1:28

As they did not seek the favour of God, by worshipping him, God gave them over to a depraved sense, to act unworthy of human nature;

Ephesians 5:6

let no man mislead you by vain reasonings: for it is for these vices, that the wrath of God lights upon the incredulous.

Revelation 21:27

and nothing that is impure, no one that is guilty of any abomination, or a lye, shall ever enter there: but they alone who are written in the lamb's book of life.

1 Timothy 1:9

it being plain, that the law was not design'd against the just, but against the lawless and refractory, against irreligion and vice, impiety and prophaneness, parricide and man-slaughter,

Romans 2:18-24

you know the divine will, and what is contrary thereto, having been educated in 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
you know the divine will, and what is contrary thereto, having been educated in the law:
2 Timothy 3:5
of which they wear the appearance, but disclaim its influence. have no intercourse with such.
Jude 1:4
For certain men have insinuated themselves among you, who were formerly proscrib'd to be punish'd; impious men, who pervert the divine favour to licentiousness, and renounce their only master, and Jesus Christ our Lord.

Being

Revelation 21:8
but the fearful, and incredulous, the abominable, the murderer, the licentious, the poisoner, the idolater, and every lyar shall have their part in the lake which burns with fire and brimstone: this is the second death."

And disobedient

Ephesians 5:6
let no man mislead you by vain reasonings: for it is for these vices, that the wrath of God lights upon the incredulous.
1 Timothy 1:9
it being plain, that the law was not design'd against the just, but against the lawless and refractory, against irreligion and vice, impiety and prophaneness, parricide and man-slaughter,

Unto

Romans 1:28
As they did not seek the favour of God, by worshipping him, God gave them over to a depraved sense, to act unworthy of human nature;
2 Timothy 3:8
Moses did not meet with greater opposition from Jannes and Jambres, than truth does from men so corrupted in their mind, and so adulterated in their faith.