Matthew 10:33
But whoever denies me before men, I will also deny him before my Father who is in heaven.
Luke 19:40
He answered, "I tell you, if these keep silent, the stones would cry out."
2 Timothy 2:12-13
if we endure, we will also reign with him; if we deny him, he also will deny us;
Titus 1:16
They profess to know God, but they deny him by their deeds; they are detestable and disobedient, unfit for any good deed.
Revelation 3:8
I know your works. See, I have set before you an open door, and no one can shut it. I know that you have little strength, yet you have kept my word, and have not denied my name.