Titus 1:16 New International Version (NIV)

¹⁶ They claim to know God, but by their actions they deny him. They are detestable, disobedient and unfit for doing anything good.

2 Peter 2:1 New International Version (NIV)

False Teachers and Their Destruction

2 But there were also false prophets among the people, just as there will be false teachers among you. They will secretly introduce destructive heresies, even denying the sovereign Lord who bought them—bringing swift destruction on themselves.

1 John 2:22 New International Version (NIV)

²² Who is the liar? It is whoever denies that Jesus is the Christ. Such a person is the antichrist—denying the Father and the Son.