Titus 1:16

They profess to know God, but by their deeds they deny [him], [because they] are detestable and disobedient, and unfit for every good deed.

1 John 2:4

The one who says "I have come to know him," and does not keep his commandments is a liar, and the truth is not in this person.

Isaiah 29:13

And the Lord said, "Because this people draw near with its mouth, and with its lips it honors me, and its heart is far from me, and their fear of me is a commandment of men that has been taught,

Ezekiel 33:31

And they come to you {as people do}, and they sit {before you}, and my people hear your words, and they do not do them, for they [are] showing passion in their mouth, but their heart [is] going after ill-gotten gain.

1 Timothy 5:8

But if someone does not provide for his own [relatives], and especially the members of his household, he has denied the faith and is worse than an unbeliever.

2 Timothy 3:5-8

maintaining a form of godliness, but denying its power. Avoid these [people].

Jude 1:4

For certain men have slipped in stealthily, who were designated long ago for this condemnation, ungodly ones, who change the grace of our God into licentiousness and who deny our only Master and Lord Jesus Christ.

1 Samuel 15:22

Then Samuel said, "Is there [as much] delight for Yahweh in burnt offerings and sacrifices as [there is] in {obeying} Yahweh? Look! {To obey} [is] better than sacrifice; to give heed than the fat of rams.

Revelation 21:8

But [as] for the cowards and unbelievers and detestable persons and murderers and sexually immoral people and sorcerers and idolaters and all liars, their share [is] in the lake that burns with fire and sulphur, which is the second death.

Numbers 24:16

the declaration of the hearer of God's words, and the knower of the knowledge of the Most High, who sees the vision of Shaddai, who is falling, and [his] eyes [are] revealed.

Isaiah 48:1

Hear this, house of Jacob, who are called by the name of Israel and came out from the waters of Judah, who swear by the name of Yahweh, and {invoke} the God of Israel, [but] not in truth and not in righteousness.

Isaiah 58:2

Yet they seek me day [by] day, and they desire the knowledge of my ways like a nation that {practiced} righteousness, and had not forsaken the judgment of its God; they ask me for {righteous judgments}, they desire the closeness of God.

Jeremiah 6:30

{They are called} rejected silver, For Yahweh has rejected them."

Hosea 8:2-3

They cry out to me, "My God! We, Israel, know you!"

Romans 1:28

And just as they did not see fit {to recognize God}, God gave them over to a debased mind, to do the things [that are] not proper,

Ephesians 5:6

Let no one deceive you with empty words, for because of these [things] the wrath of God is coming on the sons of disobedience.

Revelation 21:27

And every unclean thing and one who practices detestable things and falsehood will never enter into it, except those who are written in the book of life of the Lamb.

1 Timothy 1:9

knowing this, that the law [is] not given for a righteous [person] but for the lawless and rebellious, for the ungodly and sinners, for the unholy and totally worldly, for the one who kills his father and the one who kills his mother, for murderers,

1 Samuel 15:24

Then Saul said to Samuel, "I have sinned because I have transgressed {the commandment of Yahweh} and your words, for I feared the troops and I listened to their voice.

Job 15:16

{How much less} he who is abominable and corrupt, a man drinking wickedness like water.

Romans 2:18-24

and know his will and approve the things that are superior, [because you] are 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.

Bible References

Profess

Numbers 24:16
the declaration of the hearer of God's words, and the knower of the knowledge of the Most High, who sees the vision of Shaddai, who is falling, and [his] eyes [are] revealed.
Isaiah 29:13
And the Lord said, "Because this people draw near with its mouth, and with its lips it honors me, and its heart is far from me, and their fear of me is a commandment of men that has been taught,
Isaiah 48:1
Hear this, house of Jacob, who are called by the name of Israel and came out from the waters of Judah, who swear by the name of Yahweh, and {invoke} the God of Israel, [but] not in truth and not in righteousness.
Isaiah 58:2
Yet they seek me day [by] day, and they desire the knowledge of my ways like a nation that {practiced} righteousness, and had not forsaken the judgment of its God; they ask me for {righteous judgments}, they desire the closeness of God.
Ezekiel 33:31
And they come to you {as people do}, and they sit {before you}, and my people hear your words, and they do not do them, for they [are] showing passion in their mouth, but their heart [is] going after ill-gotten gain.
Hosea 8:2
They cry out to me, "My God! We, Israel, know you!"
Romans 2:18
and know his will and approve the things that are superior, [because you] are instructed by the law,
2 Timothy 3:5
maintaining a form of godliness, but denying its power. Avoid these [people].
Jude 1:4
For certain men have slipped in stealthily, who were designated long ago for this condemnation, ungodly ones, who change the grace of our God into licentiousness and who deny our only Master and Lord Jesus Christ.

Being

Job 15:16
{How much less} he who is abominable and corrupt, a man drinking wickedness like water.
Revelation 21:8
But [as] for the cowards and unbelievers and detestable persons and murderers and sexually immoral people and sorcerers and idolaters and all liars, their share [is] in the lake that burns with fire and sulphur, which is the second death.

And disobedient

1 Samuel 15:22
Then Samuel said, "Is there [as much] delight for Yahweh in burnt offerings and sacrifices as [there is] in {obeying} Yahweh? Look! {To obey} [is] better than sacrifice; to give heed than the fat of rams.
Ephesians 5:6
Let no one deceive you with empty words, for because of these [things] the wrath of God is coming on the sons of disobedience.
1 Timothy 1:9
knowing this, that the law [is] not given for a righteous [person] but for the lawless and rebellious, for the ungodly and sinners, for the unholy and totally worldly, for the one who kills his father and the one who kills his mother, for murderers,

Unto

Jeremiah 6:30
{They are called} rejected silver, For Yahweh has rejected them."
Romans 1:28
And just as they did not see fit {to recognize God}, God gave them over to a debased mind, to do the things [that are] not proper,
2 Timothy 3:8
And {just as} Jannes and Jambres opposed Moses, so also these oppose the truth, people corrupted in mind, disqualified concerning the faith.

General references

Numbers 23:12
He answered and said, "{Should I not speak} what Yahweh puts in my mouth?"
Deuteronomy 14:7
Only these you may not eat from {those chewing the cud} and from {those having a division of the hoof}: the camel and the hare and the coney, because {they chew the cud}, but they [do] not divide the hoof; they are [therefore] unclean for you.
Hosea 8:2
They cry out to me, "My God! We, Israel, know you!"