Titus 1:16

They profess to know God; but in works deny him, being abominable and disobedient, and unto every good work reprobate.

Hebrews 12:23

and to the general assembly and church of the first-born registered in the heavens, and to God the judge of all, and to the spirits of just men perfected,

2 Peter 2:1

BUT there were false prophets among the people, as there will be false teachers also among you, who wickedly introduce damnable heresies, and deny the sovereign Lord who bought them, bringing on themselves swift destruction.

1 John 2:23

Every one that denieth the Son, neither doth he hold the Father; but he that acknowledgeth the Son, holdeth the Father also.

Jude 1:4

For certain men have craftily introduced themselves, who were from of old proscribed for this condemnation, ungodly men, changing the grace of God into impurity, and denying our only sovereign God and Lord, Jesus Christ.

Treasury of Scripture Knowledge

Summary

This also were an iniquity to be punished by the judge: for I should have denied the God that is above.

Bible References

An

Hebrews 12:23
and to the general assembly and church of the first-born registered in the heavens, and to God the judge of all, and to the spirits of just men perfected,

For

Titus 1:16
They profess to know God; but in works deny him, being abominable and disobedient, and unto every good work reprobate.
2 Peter 2:1
BUT there were false prophets among the people, as there will be false teachers also among you, who wickedly introduce damnable heresies, and deny the sovereign Lord who bought them, bringing on themselves swift destruction.
1 John 2:23
Every one that denieth the Son, neither doth he hold the Father; but he that acknowledgeth the Son, holdeth the Father also.
Jude 1:4
For certain men have craftily introduced themselves, who were from of old proscribed for this condemnation, ungodly men, changing the grace of God into impurity, and denying our only sovereign God and Lord, Jesus Christ.