Titus 1:16
They profess to know God, but deny him by their works, being abominable, and unbelieving, and reprobate unto every good work.
Hebrews 12:23
to the whole company, and to the church of the first-born, who have been written in the heavens, and to God the Judge of all, and to the spirits of justified people who have been made perfect,
2 Peter 2:1
However there were indeed false prophets among the people, as there will also be false teachers among you, whosoever shall bring in destructive heresies, even denying the Lord who bought them, bringing on themselves swift destruction.
1 John 2:23
No one denying the Son has the Father: the one confessing the Son has also the Father.
Jude 1:4
For certain men have crept in, who long ago were written down to this judgment, ungodly, transforming the grace of God into impurity, even denying Jesus Christ, our only Sovereign and Lord.