Titus 1:16
These people claim to know God [as Savior], but they deny Him by their actions, so they are detestable and disobedient and unfit for doing anything good.
1 John 2:4
The person who says, "I have come to know Him," but does not obey what He commands, is lying [by such a profession], and the truth [about the matter] is not in his heart.
1 Timothy 5:8
But if anyone does not provide for [the needs of] his own [relatives], and especially for his own [immediate] family, he has denied the faith [i.e., the fundamental beliefs of Christianity], and is worse than an unbeliever.
2 Timothy 3:5-8
[These people] maintain an appearance of being godly, but they have denied its power; [you should] turn away from such people.
Jude 1:4
For certain men have secretly infiltrated [your ranks]; they are men who had been written about long ago that they should be judged [and condemned] for perverting the unearned favor of our God into [a license for] living unrestrained, indecent lives, and who deny [the identity and work of] our only Master and Lord, Jesus Christ.
Revelation 21:8
But the place for cowards, and unbelievers, and disgusting people [i.e., because of their terrible sins], and murderers, and sexually immoral people, and sorcerers, and idolaters, and all liars, will be the lake that burns with fire and sulphur. This is the second death."
Romans 1:28
And since these people refused to acknowledge God, He has allowed [or, abandoned] them to have degraded minds and to practice those things which they should not do.
Ephesians 5:6
Do not let anyone deceive you with empty words, for because of such things, the wrath of God will fall upon people who are disobedient [to Him].
Revelation 21:27
And there will never be anything [morally] unclean allowed to enter it, nor any person who practices disgusting behavior [i.e., probably such sins as sexual perversion], or [any person] who is a liar. But the only ones [allowed there] are those [whose names are] recorded in the Lamb's book of life.
1 Timothy 1:9
We [also] know this: Law [or, "the law of Moses"] is not intended for a righteous person, but for lawbreakers and rebels, for ungodly people and sinners, for unholy and irreverent people, for people who kill their parents, for murderers,
Romans 2:18-24
if you know His will and have been taught by the law of Moses to [evaluate and] give approval to what is best;